Remove useless configure option "--enable-sram".
[ffmpeg.git] / configure
1 #!/bin/sh
2 #
3 # FFmpeg configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken FFmpeg."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --list-decoders          show all available decoders
67   --list-encoders          show all available encoders
68   --list-hwaccels          show all available hardware accelerators
69   --list-demuxers          show all available demuxers
70   --list-muxers            show all available muxers
71   --list-parsers           show all available parsers
72   --list-protocols         show all available protocols
73   --list-bsfs              show all available bitstream filters
74   --list-indevs            show all available input devices
75   --list-outdevs           show all available output devices
76   --list-filters           show all available filters
77
78 Standard options:
79   --logfile=FILE           log tests and output to FILE [config.log]
80   --disable-logging        do not log configure debug information
81   --fatal-warnings         fail if any configure warning is generated
82   --prefix=PREFIX          install in PREFIX [$prefix]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/ffmpeg]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath to allow installing libraries in paths
91                            not part of the dynamic linker search path
92
93 Licensing options:
94   --enable-gpl             allow use of GPL code, the resulting libs
95                            and binaries will be under GPL [no]
96   --enable-version3        upgrade (L)GPL to version 3 [no]
97   --enable-nonfree         allow use of nonfree code, the resulting libs
98                            and binaries will be unredistributable [no]
99
100 Configuration options:
101   --disable-static         do not build static libraries [no]
102   --enable-shared          build shared libraries [no]
103   --enable-small           optimize for size instead of speed
104   --disable-runtime-cpudetect disable detecting cpu capabilities at runtime (smaller binary)
105   --enable-gray            enable full grayscale support (slower color)
106   --disable-swscale-alpha  disable alpha channel support in swscale
107   --disable-all            disable building components, libraries and programs
108   --enable-incompatible-libav-abi enable incompatible Libav fork ABI [no]
109   --enable-raise-major     increase major version numbers in sonames [no]
110
111 Program options:
112   --disable-programs       do not build command line programs
113   --disable-ffmpeg         disable ffmpeg build
114   --disable-ffplay         disable ffplay build
115   --disable-ffprobe        disable ffprobe build
116   --disable-ffserver       disable ffserver build
117
118 Documentation options:
119   --disable-doc            do not build documentation
120   --disable-htmlpages      do not build HTML documentation pages
121   --disable-manpages       do not build man documentation pages
122   --disable-podpages       do not build POD documentation pages
123   --disable-txtpages       do not build text documentation pages
124
125 Component options:
126   --disable-avdevice       disable libavdevice build
127   --disable-avcodec        disable libavcodec build
128   --disable-avformat       disable libavformat build
129   --disable-avutil         disable libavutil build
130   --disable-swresample     disable libswresample build
131   --disable-swscale        disable libswscale build
132   --disable-postproc       disable libpostproc build
133   --disable-avfilter       disable libavfilter build
134   --enable-avresample      enable libavresample build [no]
135   --disable-pthreads       disable pthreads [auto]
136   --disable-w32threads     disable Win32 threads [auto]
137   --disable-os2threads     disable OS/2 threads [auto]
138   --disable-network        disable network support [no]
139   --disable-dct            disable DCT code
140   --disable-dwt            disable DWT code
141   --disable-error-resilience disable error resilience code
142   --disable-lsp            disable LSP code
143   --disable-lzo            disable LZO decoder code
144   --disable-mdct           disable MDCT code
145   --disable-rdft           disable RDFT code
146   --disable-fft            disable FFT code
147   --disable-pixelutils     disable pixel utils in libavutil
148
149 Hardware accelerators:
150   --disable-dxva2          disable DXVA2 code [autodetect]
151   --disable-vaapi          disable VAAPI code [autodetect]
152   --disable-vda            disable VDA code [autodetect]
153   --disable-vdpau          disable VDPAU code [autodetect]
154
155 Individual component options:
156   --disable-everything     disable all components listed below
157   --disable-encoder=NAME   disable encoder NAME
158   --enable-encoder=NAME    enable encoder NAME
159   --disable-encoders       disable all encoders
160   --disable-decoder=NAME   disable decoder NAME
161   --enable-decoder=NAME    enable decoder NAME
162   --disable-decoders       disable all decoders
163   --disable-hwaccel=NAME   disable hwaccel NAME
164   --enable-hwaccel=NAME    enable hwaccel NAME
165   --disable-hwaccels       disable all hwaccels
166   --disable-muxer=NAME     disable muxer NAME
167   --enable-muxer=NAME      enable muxer NAME
168   --disable-muxers         disable all muxers
169   --disable-demuxer=NAME   disable demuxer NAME
170   --enable-demuxer=NAME    enable demuxer NAME
171   --disable-demuxers       disable all demuxers
172   --enable-parser=NAME     enable parser NAME
173   --disable-parser=NAME    disable parser NAME
174   --disable-parsers        disable all parsers
175   --enable-bsf=NAME        enable bitstream filter NAME
176   --disable-bsf=NAME       disable bitstream filter NAME
177   --disable-bsfs           disable all bitstream filters
178   --enable-protocol=NAME   enable protocol NAME
179   --disable-protocol=NAME  disable protocol NAME
180   --disable-protocols      disable all protocols
181   --enable-indev=NAME      enable input device NAME
182   --disable-indev=NAME     disable input device NAME
183   --disable-indevs         disable input devices
184   --enable-outdev=NAME     enable output device NAME
185   --disable-outdev=NAME    disable output device NAME
186   --disable-outdevs        disable output devices
187   --disable-devices        disable all devices
188   --enable-filter=NAME     enable filter NAME
189   --disable-filter=NAME    disable filter NAME
190   --disable-filters        disable all filters
191
192 External library support:
193   --enable-avisynth        enable reading of AviSynth script files [no]
194   --disable-bzlib          disable bzlib [autodetect]
195   --enable-fontconfig      enable fontconfig
196   --enable-frei0r          enable frei0r video filtering
197   --enable-gnutls          enable gnutls [no]
198   --disable-iconv          disable iconv [autodetect]
199   --enable-ladspa          enable LADSPA audio filtering
200   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
201   --enable-libass          enable libass subtitles rendering [no]
202   --enable-libbluray       enable BluRay reading using libbluray [no]
203   --enable-libbs2b         enable bs2b DSP library [no]
204   --enable-libcaca         enable textual display using libcaca
205   --enable-libcelt         enable CELT decoding via libcelt [no]
206   --enable-libcdio         enable audio CD grabbing with libcdio
207   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
208                            and libraw1394 [no]
209   --enable-libfaac         enable AAC encoding via libfaac [no]
210   --enable-libfdk-aac      enable AAC de/encoding via libfdk-aac [no]
211   --enable-libflite        enable flite (voice synthesis) support via libflite [no]
212   --enable-libfreetype     enable libfreetype [no]
213   --enable-libfribidi      enable libfribidi [no]
214   --enable-libgme          enable Game Music Emu via libgme [no]
215   --enable-libgsm          enable GSM de/encoding via libgsm [no]
216   --enable-libiec61883     enable iec61883 via libiec61883 [no]
217   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
218   --enable-libmodplug      enable ModPlug via libmodplug [no]
219   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
220   --enable-libnut          enable NUT (de)muxing via libnut,
221                            native (de)muxer exists [no]
222   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
223   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
224   --enable-libopencv       enable video filtering via libopencv [no]
225   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
226   --enable-libopus         enable Opus de/encoding via libopus [no]
227   --enable-libpulse        enable Pulseaudio input via libpulse [no]
228   --enable-libquvi         enable quvi input via libquvi [no]
229   --enable-librtmp         enable RTMP[E] support via librtmp [no]
230   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
231   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
232   --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
233   --enable-libsoxr         enable Include libsoxr resampling [no]
234   --enable-libspeex        enable Speex de/encoding via libspeex [no]
235   --enable-libssh          enable SFTP protocol via libssh [no]
236   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
237   --enable-libtheora       enable Theora encoding via libtheora [no]
238   --enable-libtwolame      enable MP2 encoding via libtwolame [no]
239   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
240   --enable-libv4l2         enable libv4l2/v4l-utils [no]
241   --enable-libvidstab      enable video stabilization using vid.stab [no]
242   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
243   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
244   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
245                            native implementation exists [no]
246   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
247   --enable-libwavpack      enable wavpack encoding via libwavpack [no]
248   --enable-libwebp         enable WebP encoding via libwebp [no]
249   --enable-libx264         enable H.264 encoding via x264 [no]
250   --enable-libx265         enable HEVC encoding via x265 [no]
251   --enable-libxavs         enable AVS encoding via xavs [no]
252   --enable-libxvid         enable Xvid encoding via xvidcore,
253                            native MPEG-4/Xvid encoder exists [no]
254   --enable-libzmq          enable message passing via libzmq [no]
255   --enable-libzvbi         enable teletext support via libzvbi [no]
256   --enable-decklink        enable Blackmagick DeckLink output [no]
257   --enable-openal          enable OpenAL 1.1 capture support [no]
258   --enable-opencl          enable OpenCL code
259   --enable-opengl          enable OpenGL rendering [no]
260   --enable-openssl         enable openssl [no]
261   --enable-x11grab         enable X11 grabbing [no]
262   --disable-xlib           disable xlib [autodetect]
263   --disable-zlib           disable zlib [autodetect]
264
265 Toolchain options:
266   --arch=ARCH              select architecture [$arch]
267   --cpu=CPU                select the minimum required CPU (affects
268                            instruction selection, may crash on older CPUs)
269   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
270   --progs-suffix=SUFFIX    program name suffix []
271   --enable-cross-compile   assume a cross-compiler is used
272   --sysroot=PATH           root of cross-build tree
273   --sysinclude=PATH        location of cross-build system headers
274   --target-os=OS           compiler targets OS [$target_os]
275   --target-exec=CMD        command to run executables on target
276   --target-path=DIR        path to view of build directory on target
277   --target-samples=DIR     path to samples directory on target
278   --tempprefix=PATH        force fixed dir/prefix instead of mktemp for checks
279   --toolchain=NAME         set tool defaults according to NAME
280   --nm=NM                  use nm tool NM [$nm_default]
281   --ar=AR                  use archive tool AR [$ar_default]
282   --as=AS                  use assembler AS [$as_default]
283   --windres=WINDRES        use windows resource compiler WINDRES [$windres_default]
284   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
285   --cc=CC                  use C compiler CC [$cc_default]
286   --cxx=CXX                use C compiler CXX [$cxx_default]
287   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
288   --ld=LD                  use linker LD [$ld_default]
289   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
290   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
291   --ranlib=RANLIB          use ranlib RANLIB [$ranlib_default]
292   --doxygen=DOXYGEN        use DOXYGEN to generate API doc [$doxygen_default]
293   --host-cc=HOSTCC         use host C compiler HOSTCC
294   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
295   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
296   --host-ld=HOSTLD         use host linker HOSTLD
297   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
298   --host-libs=HLIBS        use libs HLIBS when linking for host
299   --host-os=OS             compiler host OS [$target_os]
300   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
301   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
302   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
303   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
304   --extra-libs=ELIBS       add ELIBS [$ELIBS]
305   --extra-version=STRING   version string suffix []
306   --optflags=OPTFLAGS      override optimization-related compiler flags
307   --build-suffix=SUFFIX    library name suffix []
308   --enable-pic             build position-independent code
309   --enable-thumb           compile for Thumb instruction set
310   --enable-lto             use link-time optimization
311
312 Advanced options (experts only):
313   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
314   --disable-symver         disable symbol versioning
315   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
316   --disable-safe-bitstream-reader
317                            disable buffer boundary checking in bitreaders
318                            (faster, but may crash)
319   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
320   --sws-max-filter-size=N  the max filter size swscale uses [$sws_max_filter_size_default]
321
322 Optimization options (experts only):
323   --disable-asm            disable all assembly optimizations
324   --disable-altivec        disable AltiVec optimizations
325   --disable-amd3dnow       disable 3DNow! optimizations
326   --disable-amd3dnowext    disable 3DNow! extended optimizations
327   --disable-mmx            disable MMX optimizations
328   --disable-mmxext         disable MMXEXT optimizations
329   --disable-sse            disable SSE optimizations
330   --disable-sse2           disable SSE2 optimizations
331   --disable-sse3           disable SSE3 optimizations
332   --disable-ssse3          disable SSSE3 optimizations
333   --disable-sse4           disable SSE4 optimizations
334   --disable-sse42          disable SSE4.2 optimizations
335   --disable-avx            disable AVX optimizations
336   --disable-xop            disable XOP optimizations
337   --disable-fma3           disable FMA3 optimizations
338   --disable-fma4           disable FMA4 optimizations
339   --disable-avx2           disable AVX2 optimizations
340   --disable-armv5te        disable armv5te optimizations
341   --disable-armv6          disable armv6 optimizations
342   --disable-armv6t2        disable armv6t2 optimizations
343   --disable-vfp            disable VFP optimizations
344   --disable-neon           disable NEON optimizations
345   --disable-inline-asm     disable use of inline assembly
346   --disable-yasm           disable use of nasm/yasm assembly
347   --disable-mips32r2       disable MIPS32R2 optimizations
348   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
349   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
350   --disable-mipsfpu        disable floating point MIPS optimizations
351   --disable-fast-unaligned consider unaligned accesses slow
352
353 Developer options (useful when working on FFmpeg itself):
354   --disable-debug          disable debugging symbols
355   --enable-debug=LEVEL     set the debug level [$debuglevel]
356   --disable-optimizations  disable compiler optimizations
357   --enable-extra-warnings  enable more compiler warnings
358   --disable-stripping      disable stripping of executables and shared libraries
359   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
360                            2 causes a slowdown at runtime.
361   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
362   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
363                            leaks and errors, using the specified valgrind binary.
364                            Cannot be combined with --target-exec
365   --enable-ftrapv          Trap arithmetic overflows
366   --samples=PATH           location of test samples for FATE, if not set use
367                            \$FATE_SAMPLES at make invocation time.
368   --enable-neon-clobber-test check NEON registers for clobbering (should be
369                            used only for debugging purposes)
370   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
371                            should be used only for debugging purposes)
372   --enable-random          randomly enable/disable components
373   --disable-random
374   --enable-random=LIST     randomly enable/disable specific components or
375   --disable-random=LIST    component groups. LIST is a comma-separated list
376                            of NAME[:PROB] entries where NAME is a component
377                            (group) and PROB the probability associated with
378                            NAME (default 0.5).
379   --random-seed=VALUE      seed value for --enable/disable-random
380
381 NOTE: Object files are built at the place where configure is launched.
382 EOF
383   exit 0
384 }
385
386 quotes='""'
387
388 log(){
389     echo "$@" >> $logfile
390 }
391
392 log_file(){
393     log BEGIN $1
394     pr -n -t $1 >> $logfile
395     log END $1
396 }
397
398 echolog(){
399     log "$@"
400     echo "$@"
401 }
402
403 warn(){
404     log "WARNING: $*"
405     WARNINGS="${WARNINGS}WARNING: $*\n"
406 }
407
408 die(){
409     echolog "$@"
410     cat <<EOF
411
412 If you think configure made a mistake, make sure you are using the latest
413 version from Git.  If the latest version fails, report the problem to the
414 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
415 EOF
416     if disabled logging; then
417         cat <<EOF
418 Rerun configure with logging enabled (do not use --disable-logging), and
419 include the log this produces with your report.
420 EOF
421     else
422         cat <<EOF
423 Include the log file "$logfile" produced by configure as this will help
424 solve the problem.
425 EOF
426     fi
427     exit 1
428 }
429
430 # Avoid locale weirdness, besides we really just want to translate ASCII.
431 toupper(){
432     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
433 }
434
435 tolower(){
436     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
437 }
438
439 c_escape(){
440     echo "$*" | sed 's/["\\]/\\\0/g'
441 }
442
443 sh_quote(){
444     v=$(echo "$1" | sed "s/'/'\\\\''/g")
445     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
446     echo "$v"
447 }
448
449 cleanws(){
450     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//;s/\\r//g'
451 }
452
453 filter(){
454     pat=$1
455     shift
456     for v; do
457         eval "case $v in $pat) echo $v ;; esac"
458     done
459 }
460
461 filter_out(){
462     pat=$1
463     shift
464     for v; do
465         eval "case $v in $pat) ;; *) echo $v ;; esac"
466     done
467 }
468
469 map(){
470     m=$1
471     shift
472     for v; do eval $m; done
473 }
474
475 add_suffix(){
476     suffix=$1
477     shift
478     for v; do echo ${v}${suffix}; done
479 }
480
481 set_all(){
482     value=$1
483     shift
484     for var in $*; do
485         eval $var=$value
486     done
487 }
488
489 set_weak(){
490     value=$1
491     shift
492     for var; do
493         eval : \${$var:=$value}
494     done
495 }
496
497 sanitize_var_name(){
498     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
499 }
500
501 set_safe(){
502     var=$1
503     shift
504     eval $(sanitize_var_name "$var")='$*'
505 }
506
507 get_safe(){
508     eval echo \$$(sanitize_var_name "$1")
509 }
510
511 pushvar(){
512     for pvar in $*; do
513         eval level=\${${pvar}_level:=0}
514         eval ${pvar}_${level}="\$$pvar"
515         eval ${pvar}_level=$(($level+1))
516     done
517 }
518
519 popvar(){
520     for pvar in $*; do
521         eval level=\${${pvar}_level:-0}
522         test $level = 0 && continue
523         eval level=$(($level-1))
524         eval $pvar="\${${pvar}_${level}}"
525         eval ${pvar}_level=$level
526         eval unset ${pvar}_${level}
527     done
528 }
529
530 enable(){
531     set_all yes $*
532 }
533
534 disable(){
535     set_all no $*
536 }
537
538 enable_weak(){
539     set_weak yes $*
540 }
541
542 disable_weak(){
543     set_weak no $*
544 }
545
546 enable_safe(){
547     for var; do
548         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
549     done
550 }
551
552 disable_safe(){
553     for var; do
554         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
555     done
556 }
557
558 do_enable_deep(){
559     for var; do
560         enabled $var && continue
561         eval sel="\$${var}_select"
562         eval sgs="\$${var}_suggest"
563         pushvar var sgs
564         enable_deep $sel
565         popvar sgs
566         enable_deep_weak $sgs
567         popvar var
568     done
569 }
570
571 enable_deep(){
572     do_enable_deep $*
573     enable $*
574 }
575
576 enable_deep_weak(){
577     for var; do
578         disabled $var && continue
579         pushvar var
580         do_enable_deep $var
581         popvar var
582         enable_weak $var
583     done
584 }
585
586 enabled(){
587     test "${1#!}" = "$1" && op== || op=!=
588     eval test "x\$${1#!}" $op "xyes"
589 }
590
591 disabled(){
592     test "${1#!}" = "$1" && op== || op=!=
593     eval test "x\$${1#!}" $op "xno"
594 }
595
596 enabled_all(){
597     for opt; do
598         enabled $opt || return 1
599     done
600 }
601
602 disabled_all(){
603     for opt; do
604         disabled $opt || return 1
605     done
606 }
607
608 enabled_any(){
609     for opt; do
610         enabled $opt && return 0
611     done
612 }
613
614 disabled_any(){
615     for opt; do
616         disabled $opt && return 0
617     done
618     return 1
619 }
620
621 set_default(){
622     for opt; do
623         eval : \${$opt:=\$${opt}_default}
624     done
625 }
626
627 is_in(){
628     value=$1
629     shift
630     for var in $*; do
631         [ $var = $value ] && return 0
632     done
633     return 1
634 }
635
636 do_check_deps(){
637     for cfg; do
638         cfg="${cfg#!}"
639         enabled ${cfg}_checking && die "Circular dependency for $cfg."
640         disabled ${cfg}_checking && continue
641         enable ${cfg}_checking
642         append allopts $cfg
643
644         eval dep_all="\$${cfg}_deps"
645         eval dep_any="\$${cfg}_deps_any"
646         eval dep_sel="\$${cfg}_select"
647         eval dep_sgs="\$${cfg}_suggest"
648         eval dep_ifa="\$${cfg}_if"
649         eval dep_ifn="\$${cfg}_if_any"
650
651         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
652         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
653         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
654
655         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
656         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
657         enabled_all  $dep_all || disable $cfg
658         enabled_any  $dep_any || disable $cfg
659         disabled_any $dep_sel && disable $cfg
660
661         if enabled $cfg; then
662             enable_deep $dep_sel
663             enable_deep_weak $dep_sgs
664         fi
665
666         disable ${cfg}_checking
667     done
668 }
669
670 check_deps(){
671     unset allopts
672
673     do_check_deps "$@"
674
675     for cfg in $allopts; do
676         enabled $cfg || continue
677         eval dep_extralibs="\$${cfg}_extralibs"
678         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
679     done
680 }
681
682 print_config(){
683     pfx=$1
684     files=$2
685     shift 2
686     map 'eval echo "$v \${$v:-no}"' "$@" |
687     awk "BEGIN { split(\"$files\", files) }
688         {
689             c = \"$pfx\" toupper(\$1);
690             v = \$2;
691             sub(/yes/, 1, v);
692             sub(/no/,  0, v);
693             for (f in files) {
694                 file = files[f];
695                 if (file ~ /\\.h\$/) {
696                     printf(\"#define %s %d\\n\", c, v) >>file;
697                 } else if (file ~ /\\.asm\$/) {
698                     printf(\"%%define %s %d\\n\", c, v) >>file;
699                 } else if (file ~ /\\.mak\$/) {
700                     n = -v ? \"\" : \"!\";
701                     printf(\"%s%s=yes\\n\", n, c) >>file;
702                 } else if (file ~ /\\.texi\$/) {
703                     pre = -v ? \"\" : \"@c \";
704                     yesno = \$2;
705                     c2 = tolower(c);
706                     gsub(/_/, \"-\", c2);
707                     printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
708                 }
709             }
710         }"
711 }
712
713 print_enabled(){
714     suf=$1
715     shift
716     for v; do
717         enabled $v && printf "%s\n" ${v%$suf};
718     done
719 }
720
721 append(){
722     var=$1
723     shift
724     eval "$var=\"\$$var $*\""
725 }
726
727 prepend(){
728     var=$1
729     shift
730     eval "$var=\"$* \$$var\""
731 }
732
733 unique(){
734     var=$1
735     uniq_list=""
736     for tok in $(eval echo \$$var); do
737         uniq_list="$(filter_out $tok $uniq_list) $tok"
738     done
739     eval "$var=\"${uniq_list}\""
740 }
741
742 add_cppflags(){
743     append CPPFLAGS "$@"
744 }
745
746 add_cflags(){
747     append CFLAGS $($cflags_filter "$@")
748 }
749
750 add_cxxflags(){
751     append CXXFLAGS $($cflags_filter "$@")
752 }
753
754 add_asflags(){
755     append ASFLAGS $($asflags_filter "$@")
756 }
757
758 add_ldflags(){
759     append LDFLAGS $($ldflags_filter "$@")
760 }
761
762 add_ldexeflags(){
763     append LDEXEFLAGS $($ldflags_filter "$@")
764 }
765
766 add_stripflags(){
767     append ASMSTRIPFLAGS "$@"
768 }
769
770 add_extralibs(){
771     prepend extralibs $($ldflags_filter "$@")
772 }
773
774 add_host_cppflags(){
775     append host_cppflags "$@"
776 }
777
778 add_host_cflags(){
779     append host_cflags $($host_cflags_filter "$@")
780 }
781
782 add_host_ldflags(){
783     append host_ldflags $($host_ldflags_filter "$@")
784 }
785
786 add_compat(){
787     append compat_objs $1
788     shift
789     map 'add_cppflags -D$v' "$@"
790 }
791
792 check_cmd(){
793     log "$@"
794     "$@" >> $logfile 2>&1
795 }
796
797 check_stat(){
798     log check_stat "$@"
799     stat "$1" >> $logfile 2>&1
800 }
801
802 cc_o(){
803     eval printf '%s\\n' $CC_O
804 }
805
806 cc_e(){
807     eval printf '%s\\n' $CC_E
808 }
809
810 check_cc(){
811     log check_cc "$@"
812     cat > $TMPC
813     log_file $TMPC
814     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
815 }
816
817 check_cxx(){
818     log check_cxx "$@"
819     cat > $TMPCPP
820     log_file $TMPCPP
821     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
822 }
823
824 check_oc(){
825     log check_oc "$@"
826     cat > $TMPM
827     log_file $TMPM
828     check_cmd $cc -Werror=missing-prototypes $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPM
829 }
830
831 check_cpp(){
832     log check_cpp "$@"
833     cat > $TMPC
834     log_file $TMPC
835     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
836 }
837
838 as_o(){
839     eval printf '%s\\n' $AS_O
840 }
841
842 check_as(){
843     log check_as "$@"
844     cat > $TMPS
845     log_file $TMPS
846     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
847 }
848
849 check_inline_asm(){
850     log check_inline_asm "$@"
851     name="$1"
852     code="$2"
853     shift 2
854     disable $name
855     check_cc "$@" <<EOF && enable $name
856 void foo(void){ __asm__ volatile($code); }
857 EOF
858 }
859
860 check_insn(){
861     log check_insn "$@"
862     check_inline_asm ${1}_inline "\"$2\""
863     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
864 }
865
866 check_yasm(){
867     log check_yasm "$@"
868     echo "$1" > $TMPS
869     log_file $TMPS
870     shift 1
871     check_cmd $yasmexe $YASMFLAGS -Werror "$@" -o $TMPO $TMPS
872 }
873
874 ld_o(){
875     eval printf '%s\\n' $LD_O
876 }
877
878 check_ld(){
879     log check_ld "$@"
880     type=$1
881     shift 1
882     flags=$(filter_out '-l*|*.so' $@)
883     libs=$(filter '-l*|*.so' $@)
884     check_$type $($cflags_filter $flags) || return
885     flags=$($ldflags_filter $flags)
886     libs=$($ldflags_filter $libs)
887     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
888 }
889
890 print_include(){
891     hdr=$1
892     test "${hdr%.h}" = "${hdr}" &&
893         echo "#include $hdr"    ||
894         echo "#include <$hdr>"
895 }
896
897 check_code(){
898     log check_code "$@"
899     check=$1
900     headers=$2
901     code=$3
902     shift 3
903     {
904         for hdr in $headers; do
905             print_include $hdr
906         done
907         echo "int main(void) { $code; return 0; }"
908     } | check_$check "$@"
909 }
910
911 check_cppflags(){
912     log check_cppflags "$@"
913     check_cc "$@" <<EOF && append CPPFLAGS "$@"
914 int x;
915 EOF
916 }
917
918 test_cflags(){
919     log test_cflags "$@"
920     set -- $($cflags_filter "$@")
921     check_cc "$@" <<EOF
922 int x;
923 EOF
924 }
925
926 check_cflags(){
927     log check_cflags "$@"
928     test_cflags "$@" && add_cflags "$@"
929 }
930
931 check_cxxflags(){
932     log check_cxxflags "$@"
933     set -- $($cflags_filter "$@")
934     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
935 int x;
936 EOF
937 }
938
939 test_ldflags(){
940     log test_ldflags "$@"
941     check_ld "cc" "$@" <<EOF
942 int main(void){ return 0; }
943 EOF
944 }
945
946 check_ldflags(){
947     log check_ldflags "$@"
948     test_ldflags "$@" && add_ldflags "$@"
949 }
950
951 test_stripflags(){
952     log test_stripflags "$@"
953     # call check_cc to get a fresh TMPO
954     check_cc <<EOF
955 int main(void) { return 0; }
956 EOF
957     check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
958 }
959
960 check_stripflags(){
961     log check_stripflags "$@"
962     test_stripflags "$@" && add_stripflags "$@"
963 }
964
965 check_header(){
966     log check_header "$@"
967     header=$1
968     shift
969     disable_safe $header
970     check_cpp "$@" <<EOF && enable_safe $header
971 #include <$header>
972 int x;
973 EOF
974 }
975
976 check_header_oc(){
977     log check_header_oc "$@"
978     rm -f -- "$TMPO"
979     header=$1
980     shift
981     disable_safe $header
982     {
983        echo "#include <$header>"
984        echo "int main(void) { return 0; }"
985     } | check_oc && check_stat "$TMPO" && enable_safe $headers
986 }
987
988 check_func(){
989     log check_func "$@"
990     func=$1
991     shift
992     disable $func
993     check_ld "cc" "$@" <<EOF && enable $func
994 extern int $func();
995 int main(void){ $func(); }
996 EOF
997 }
998
999 check_mathfunc(){
1000     log check_mathfunc "$@"
1001     func=$1
1002     narg=$2
1003     shift 2
1004     test $narg = 2 && args="f, g" || args="f"
1005     disable $func
1006     check_ld "cc" "$@" <<EOF && enable $func
1007 #include <math.h>
1008 float foo(float f, float g) { return $func($args); }
1009 int main(void){ return (int) foo; }
1010 EOF
1011 }
1012
1013 check_func_headers(){
1014     log check_func_headers "$@"
1015     headers=$1
1016     funcs=$2
1017     shift 2
1018     {
1019         for hdr in $headers; do
1020             print_include $hdr
1021         done
1022         for func in $funcs; do
1023             echo "long check_$func(void) { return (long) $func; }"
1024         done
1025         echo "int main(void) { return 0; }"
1026     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
1027 }
1028
1029 check_class_headers_cpp(){
1030     log check_class_headers_cpp "$@"
1031     headers=$1
1032     classes=$2
1033     shift 2
1034     {
1035         for hdr in $headers; do
1036             echo "#include <$hdr>"
1037         done
1038         echo "int main(void) { "
1039         i=1
1040         for class in $classes; do
1041             echo "$class obj$i;"
1042             i=$(expr $i + 1)
1043         done
1044         echo "return 0; }"
1045     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
1046 }
1047
1048 check_cpp_condition(){
1049     log check_cpp_condition "$@"
1050     header=$1
1051     condition=$2
1052     shift 2
1053     check_cpp "$@" <<EOF
1054 #include <$header>
1055 #if !($condition)
1056 #error "unsatisfied condition: $condition"
1057 #endif
1058 EOF
1059 }
1060
1061 check_lib(){
1062     log check_lib "$@"
1063     header="$1"
1064     func="$2"
1065     shift 2
1066     check_header $header && check_func $func "$@" && add_extralibs "$@"
1067 }
1068
1069 check_lib2(){
1070     log check_lib2 "$@"
1071     headers="$1"
1072     funcs="$2"
1073     shift 2
1074     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
1075 }
1076
1077 check_lib_cpp(){
1078     log check_lib_cpp "$@"
1079     headers="$1"
1080     classes="$2"
1081     shift 2
1082     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
1083 }
1084
1085 check_pkg_config(){
1086     log check_pkg_config "$@"
1087     pkgandversion="$1"
1088     pkg="${1%% *}"
1089     headers="$2"
1090     funcs="$3"
1091     shift 3
1092     check_cmd $pkg_config --exists --print-errors $pkgandversion || return
1093     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1094     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1095     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1096         set_safe ${pkg}_cflags $pkg_cflags   &&
1097         set_safe ${pkg}_libs   $pkg_libs
1098 }
1099
1100 check_exec(){
1101     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1102 }
1103
1104 check_exec_crash(){
1105     code=$(cat)
1106
1107     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1108     # are safe but may not be available everywhere.  Thus we use
1109     # raise(SIGTERM) instead.  The check is run in a subshell so we
1110     # can redirect the "Terminated" message from the shell.  SIGBUS
1111     # is not defined by standard C so it is used conditionally.
1112
1113     (check_exec "$@") >> $logfile 2>&1 <<EOF
1114 #include <signal.h>
1115 static void sighandler(int sig){
1116     raise(SIGTERM);
1117 }
1118 int foo(void){
1119     $code
1120 }
1121 int (*func_ptr)(void) = foo;
1122 int main(void){
1123     signal(SIGILL, sighandler);
1124     signal(SIGFPE, sighandler);
1125     signal(SIGSEGV, sighandler);
1126 #ifdef SIGBUS
1127     signal(SIGBUS, sighandler);
1128 #endif
1129     return func_ptr();
1130 }
1131 EOF
1132 }
1133
1134 check_type(){
1135     log check_type "$@"
1136     headers=$1
1137     type=$2
1138     shift 2
1139     disable_safe "$type"
1140     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
1141 }
1142
1143 check_struct(){
1144     log check_struct "$@"
1145     headers=$1
1146     struct=$2
1147     member=$3
1148     shift 3
1149     disable_safe "${struct}_${member}"
1150     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1151         enable_safe "${struct}_${member}"
1152 }
1153
1154 check_builtin(){
1155     log check_builtin "$@"
1156     name=$1
1157     headers=$2
1158     builtin=$3
1159     shift 3
1160     disable "$name"
1161     check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
1162 }
1163
1164 check_compile_assert(){
1165     log check_compile_assert "$@"
1166     name=$1
1167     headers=$2
1168     condition=$3
1169     shift 3
1170     disable "$name"
1171     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1172 }
1173
1174 require(){
1175     name="$1"
1176     header="$2"
1177     func="$3"
1178     shift 3
1179     check_lib $header $func "$@" || die "ERROR: $name not found"
1180 }
1181
1182 require2(){
1183     name="$1"
1184     headers="$2"
1185     func="$3"
1186     shift 3
1187     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
1188 }
1189
1190 require_cpp(){
1191     name="$1"
1192     headers="$2"
1193     classes="$3"
1194     shift 3
1195     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
1196 }
1197
1198 require_pkg_config(){
1199     pkg="$1"
1200     check_pkg_config "$@" || die "ERROR: $pkg not found"
1201     add_cflags    $(get_safe ${pkg}_cflags)
1202     add_extralibs $(get_safe ${pkg}_libs)
1203 }
1204
1205 require_libfreetype(){
1206     log require_libfreetype "$@"
1207     pkg="freetype2"
1208     check_cmd $pkg_config --exists --print-errors $pkg \
1209       || die "ERROR: $pkg not found"
1210     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1211     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1212     {
1213         echo "#include <ft2build.h>"
1214         echo "#include FT_FREETYPE_H"
1215         echo "long check_func(void) { return (long) FT_Init_FreeType; }"
1216         echo "int main(void) { return 0; }"
1217     } | check_ld "cc" $pkg_cflags $pkg_libs \
1218       && set_safe ${pkg}_cflags $pkg_cflags \
1219       && set_safe ${pkg}_libs   $pkg_libs \
1220       || die "ERROR: $pkg not found"
1221     add_cflags    $(get_safe ${pkg}_cflags)
1222     add_extralibs $(get_safe ${pkg}_libs)
1223 }
1224
1225 hostcc_e(){
1226     eval printf '%s\\n' $HOSTCC_E
1227 }
1228
1229 hostcc_o(){
1230     eval printf '%s\\n' $HOSTCC_O
1231 }
1232
1233 check_host_cc(){
1234     log check_host_cc "$@"
1235     cat > $TMPC
1236     log_file $TMPC
1237     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1238 }
1239
1240 check_host_cpp(){
1241     log check_host_cpp "$@"
1242     cat > $TMPC
1243     log_file $TMPC
1244     check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
1245 }
1246
1247 check_host_cppflags(){
1248     log check_host_cppflags "$@"
1249     check_host_cc "$@" <<EOF && append host_cppflags "$@"
1250 int x;
1251 EOF
1252 }
1253
1254 check_host_cflags(){
1255     log check_host_cflags "$@"
1256     set -- $($host_cflags_filter "$@")
1257     check_host_cc "$@" <<EOF && append host_cflags "$@"
1258 int x;
1259 EOF
1260 }
1261
1262 check_host_cpp_condition(){
1263     log check_host_cpp_condition "$@"
1264     header=$1
1265     condition=$2
1266     shift 2
1267     check_host_cpp "$@" <<EOF
1268 #include <$header>
1269 #if !($condition)
1270 #error "unsatisfied condition: $condition"
1271 #endif
1272 EOF
1273 }
1274
1275 apply(){
1276     file=$1
1277     shift
1278     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1279 }
1280
1281 cp_if_changed(){
1282     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1283     mkdir -p "$(dirname $2)"
1284     $cp_f "$1" "$2"
1285 }
1286
1287 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1288 # system-dependent things.
1289
1290 COMPONENT_LIST="
1291     bsfs
1292     decoders
1293     demuxers
1294     encoders
1295     filters
1296     hwaccels
1297     indevs
1298     muxers
1299     outdevs
1300     parsers
1301     protocols
1302 "
1303
1304 EXAMPLE_LIST="
1305     avio_reading_example
1306     decoding_encoding_example
1307     demuxing_decoding_example
1308     filter_audio_example
1309     filtering_audio_example
1310     filtering_video_example
1311     metadata_example
1312     muxing_example
1313     remuxing_example
1314     resampling_audio_example
1315     scaling_video_example
1316     transcode_aac_example
1317     transcoding_example
1318 "
1319
1320 EXTERNAL_LIBRARY_LIST="
1321     avisynth
1322     bzlib
1323     crystalhd
1324     decklink
1325     frei0r
1326     gnutls
1327     iconv
1328     ladspa
1329     libaacplus
1330     libass
1331     libbluray
1332     libbs2b
1333     libcaca
1334     libcdio
1335     libcelt
1336     libdc1394
1337     libfaac
1338     libfdk_aac
1339     libflite
1340     libfontconfig
1341     libfreetype
1342     libfribidi
1343     libgme
1344     libgsm
1345     libiec61883
1346     libilbc
1347     libmodplug
1348     libmp3lame
1349     libnut
1350     libopencore_amrnb
1351     libopencore_amrwb
1352     libopencv
1353     libopenjpeg
1354     libopus
1355     libpulse
1356     libquvi
1357     librtmp
1358     libschroedinger
1359     libshine
1360     libsmbclient
1361     libsoxr
1362     libspeex
1363     libssh
1364     libstagefright_h264
1365     libtheora
1366     libtwolame
1367     libutvideo
1368     libv4l2
1369     libvidstab
1370     libvo_aacenc
1371     libvo_amrwbenc
1372     libvorbis
1373     libvpx
1374     libwavpack
1375     libwebp
1376     libx264
1377     libx265
1378     libxavs
1379     libxvid
1380     libzmq
1381     libzvbi
1382     openal
1383     opencl
1384     opengl
1385     openssl
1386     x11grab
1387     xlib
1388     zlib
1389 "
1390
1391 DOCUMENT_LIST="
1392     doc
1393     htmlpages
1394     manpages
1395     podpages
1396     txtpages
1397 "
1398
1399 FEATURE_LIST="
1400     ftrapv
1401     gray
1402     hardcoded_tables
1403     runtime_cpudetect
1404     safe_bitstream_reader
1405     shared
1406     small
1407     static
1408     swscale_alpha
1409 "
1410
1411 HWACCEL_LIST="
1412     dxva2
1413     vaapi
1414     vda
1415     vdpau
1416     xvmc
1417 "
1418
1419 LIBRARY_LIST="
1420     avcodec
1421     avdevice
1422     avfilter
1423     avformat
1424     avresample
1425     avutil
1426     postproc
1427     swresample
1428     swscale
1429 "
1430
1431 LICENSE_LIST="
1432     gpl
1433     nonfree
1434     version3
1435 "
1436
1437 PROGRAM_LIST="
1438     ffplay
1439     ffprobe
1440     ffserver
1441     ffmpeg
1442 "
1443
1444 SUBSYSTEM_LIST="
1445     dct
1446     dwt
1447     error_resilience
1448     fast_unaligned
1449     fft
1450     lsp
1451     lzo
1452     mdct
1453     pixelutils
1454     network
1455     rdft
1456 "
1457
1458 CONFIG_LIST="
1459     $COMPONENT_LIST
1460     $DOCUMENT_LIST
1461     $EXAMPLE_LIST
1462     $EXTERNAL_LIBRARY_LIST
1463     $FEATURE_LIST
1464     $HWACCEL_LIST
1465     $LICENSE_LIST
1466     $LIBRARY_LIST
1467     $PROGRAM_LIST
1468     $SUBSYSTEM_LIST
1469     fontconfig
1470     incompatible_libav_abi
1471     memalign_hack
1472     memory_poisoning
1473     neon_clobber_test
1474     pic
1475     pod2man
1476     raise_major
1477     thumb
1478     xmm_clobber_test
1479 "
1480
1481 THREADS_LIST="
1482     pthreads
1483     os2threads
1484     w32threads
1485 "
1486
1487 ATOMICS_LIST="
1488     atomics_gcc
1489     atomics_suncc
1490     atomics_win32
1491 "
1492
1493 ARCH_LIST="
1494     aarch64
1495     alpha
1496     arm
1497     avr32
1498     avr32_ap
1499     avr32_uc
1500     bfin
1501     ia64
1502     m68k
1503     mips
1504     mips64
1505     parisc
1506     ppc
1507     ppc64
1508     s390
1509     sh4
1510     sparc
1511     sparc64
1512     tilegx
1513     tilepro
1514     tomi
1515     x86
1516     x86_32
1517     x86_64
1518 "
1519
1520 ARCH_EXT_LIST_ARM="
1521     armv5te
1522     armv6
1523     armv6t2
1524     armv8
1525     neon
1526     vfp
1527     vfpv3
1528 "
1529
1530 ARCH_EXT_LIST_MIPS="
1531     mipsfpu
1532     mips32r2
1533     mipsdspr1
1534     mipsdspr2
1535 "
1536
1537 ARCH_EXT_LIST_X86_SIMD="
1538     amd3dnow
1539     amd3dnowext
1540     avx
1541     avx2
1542     fma3
1543     fma4
1544     mmx
1545     mmxext
1546     sse
1547     sse2
1548     sse3
1549     sse4
1550     sse42
1551     ssse3
1552     xop
1553 "
1554
1555 ARCH_EXT_LIST_PPC="
1556     altivec
1557     dcbzl
1558     ldbrx
1559     ppc4xx
1560     vsx
1561 "
1562
1563 ARCH_EXT_LIST_X86="
1564     $ARCH_EXT_LIST_X86_SIMD
1565     cpunop
1566     i686
1567 "
1568
1569 ARCH_EXT_LIST="
1570     $ARCH_EXT_LIST_ARM
1571     $ARCH_EXT_LIST_PPC
1572     $ARCH_EXT_LIST_X86
1573     $ARCH_EXT_LIST_MIPS
1574     loongson
1575 "
1576
1577 ARCH_FEATURES="
1578     aligned_stack
1579     fast_64bit
1580     fast_clz
1581     fast_cmov
1582     local_aligned_8
1583     local_aligned_16
1584     local_aligned_32
1585     simd_align_16
1586 "
1587
1588 BUILTIN_LIST="
1589     atomic_cas_ptr
1590     machine_rw_barrier
1591     MemoryBarrier
1592     mm_empty
1593     rdtsc
1594     sarestart
1595     sync_val_compare_and_swap
1596 "
1597 HAVE_LIST_CMDLINE="
1598     inline_asm
1599     symver
1600     yasm
1601 "
1602
1603 HAVE_LIST_PUB="
1604     bigendian
1605     fast_unaligned
1606     incompatible_libav_abi
1607 "
1608
1609 HEADERS_LIST="
1610     alsa_asoundlib_h
1611     altivec_h
1612     arpa_inet_h
1613     asm_types_h
1614     cdio_paranoia_h
1615     cdio_paranoia_paranoia_h
1616     CL_cl_h
1617     dev_bktr_ioctl_bt848_h
1618     dev_bktr_ioctl_meteor_h
1619     dev_ic_bt8xx_h
1620     dev_video_bktr_ioctl_bt848_h
1621     dev_video_meteor_ioctl_meteor_h
1622     direct_h
1623     dlfcn_h
1624     dxva_h
1625     ES2_gl_h
1626     gsm_h
1627     io_h
1628     mach_mach_time_h
1629     machine_ioctl_bt848_h
1630     machine_ioctl_meteor_h
1631     malloc_h
1632     openjpeg_1_5_openjpeg_h
1633     OpenGL_gl3_h
1634     poll_h
1635     sndio_h
1636     soundcard_h
1637     sys_mman_h
1638     sys_param_h
1639     sys_resource_h
1640     sys_select_h
1641     sys_soundcard_h
1642     sys_time_h
1643     sys_un_h
1644     sys_videoio_h
1645     termios_h
1646     unistd_h
1647     windows_h
1648     winsock2_h
1649 "
1650
1651 INTRINSICS_LIST="
1652     intrinsics_neon
1653 "
1654
1655 MATH_FUNCS="
1656     atanf
1657     atan2f
1658     cbrt
1659     cbrtf
1660     cosf
1661     exp2
1662     exp2f
1663     expf
1664     fminf
1665     isinf
1666     isnan
1667     ldexpf
1668     llrint
1669     llrintf
1670     log2
1671     log2f
1672     log10f
1673     lrint
1674     lrintf
1675     powf
1676     rint
1677     round
1678     roundf
1679     sinf
1680     trunc
1681     truncf
1682 "
1683
1684 SYSTEM_FUNCS="
1685     access
1686     aligned_malloc
1687     clock_gettime
1688     closesocket
1689     CommandLineToArgvW
1690     CoTaskMemFree
1691     CryptGenRandom
1692     dlopen
1693     fcntl
1694     flt_lim
1695     fork
1696     getaddrinfo
1697     gethrtime
1698     getopt
1699     GetProcessAffinityMask
1700     GetProcessMemoryInfo
1701     GetProcessTimes
1702     getrusage
1703     getservbyport
1704     GetSystemTimeAsFileTime
1705     gettimeofday
1706     glob
1707     glXGetProcAddress
1708     inet_aton
1709     isatty
1710     jack_port_get_latency_range
1711     kbhit
1712     localtime_r
1713     lzo1x_999_compress
1714     mach_absolute_time
1715     MapViewOfFile
1716     memalign
1717     mkstemp
1718     mmap
1719     mprotect
1720     nanosleep
1721     PeekNamedPipe
1722     posix_memalign
1723     pthread_cancel
1724     sched_getaffinity
1725     SetConsoleTextAttribute
1726     setmode
1727     setrlimit
1728     Sleep
1729     strerror_r
1730     sysconf
1731     sysctl
1732     usleep
1733     VirtualAlloc
1734     wglGetProcAddress
1735 "
1736
1737 TOOLCHAIN_FEATURES="
1738     as_dn_directive
1739     as_func
1740     asm_mod_q
1741     attribute_may_alias
1742     attribute_packed
1743     ebp_available
1744     ebx_available
1745     gnu_as
1746     gnu_windres
1747     ibm_asm
1748     inline_asm_labels
1749     inline_asm_nonlocal_labels
1750     inline_asm_direct_symbol_refs
1751     pragma_deprecated
1752     rsync_contimeout
1753     symver_asm_label
1754     symver_gnu_asm
1755     vfp_args
1756     xform_asm
1757     xmm_clobbers
1758 "
1759
1760 TYPES_LIST="
1761     socklen_t
1762     struct_addrinfo
1763     struct_group_source_req
1764     struct_ip_mreq_source
1765     struct_ipv6_mreq
1766     struct_pollfd
1767     struct_rusage_ru_maxrss
1768     struct_sctp_event_subscribe
1769     struct_sockaddr_in6
1770     struct_sockaddr_sa_len
1771     struct_sockaddr_storage
1772     struct_stat_st_mtim_tv_nsec
1773     struct_v4l2_frmivalenum_discrete
1774 "
1775
1776 HAVE_LIST="
1777     $ARCH_EXT_LIST
1778     $(add_suffix _external $ARCH_EXT_LIST)
1779     $(add_suffix _inline   $ARCH_EXT_LIST)
1780     $ARCH_FEATURES
1781     $ATOMICS_LIST
1782     $BUILTIN_LIST
1783     $HAVE_LIST_CMDLINE
1784     $HAVE_LIST_PUB
1785     $HEADERS_LIST
1786     $INTRINSICS_LIST
1787     $MATH_FUNCS
1788     $SYSTEM_FUNCS
1789     $THREADS_LIST
1790     $TOOLCHAIN_FEATURES
1791     $TYPES_LIST
1792     atomics_native
1793     dos_paths
1794     dxva2api_cobj
1795     dxva2_lib
1796     libc_msvcrt
1797     libdc1394_1
1798     libdc1394_2
1799     makeinfo
1800     perl
1801     pod2man
1802     sdl
1803     texi2html
1804     threads
1805     vdpau_x11
1806     xlib
1807 "
1808
1809 # options emitted with CONFIG_ prefix but not available on the command line
1810 CONFIG_EXTRA="
1811     aandcttables
1812     ac3dsp
1813     audio_frame_queue
1814     audiodsp
1815     blockdsp
1816     bswapdsp
1817     cabac
1818     dvprofile
1819     exif
1820     fdctdsp
1821     frame_thread_encoder
1822     gcrypt
1823     golomb
1824     gplv3
1825     h263dsp
1826     h264chroma
1827     h264dsp
1828     h264pred
1829     h264qpel
1830     hpeldsp
1831     huffman
1832     huffyuvdsp
1833     huffyuvencdsp
1834     idctdsp
1835     iirfilter
1836     intrax8
1837     lgplv3
1838     llauddsp
1839     llviddsp
1840     lpc
1841     me_cmp
1842     mpeg_er
1843     mpegaudio
1844     mpegaudiodsp
1845     mpegvideo
1846     mpegvideoenc
1847     nettle
1848     pixblockdsp
1849     qpeldsp
1850     rangecoder
1851     riffdec
1852     riffenc
1853     rtpdec
1854     rtpenc_chain
1855     sinewin
1856     startcode
1857     tpeldsp
1858     videodsp
1859     vp3dsp
1860 "
1861
1862 CMDLINE_SELECT="
1863     $ARCH_EXT_LIST
1864     $CONFIG_LIST
1865     $HAVE_LIST_CMDLINE
1866     $THREADS_LIST
1867     asm
1868     cross_compile
1869     debug
1870     extra_warnings
1871     logging
1872     lto
1873     optimizations
1874     rpath
1875     stripping
1876 "
1877
1878 PATHS_LIST="
1879     bindir
1880     datadir
1881     docdir
1882     incdir
1883     libdir
1884     mandir
1885     prefix
1886     shlibdir
1887 "
1888
1889 CMDLINE_SET="
1890     $PATHS_LIST
1891     ar
1892     arch
1893     as
1894     assert_level
1895     build_suffix
1896     cc
1897     cpu
1898     cross_prefix
1899     cxx
1900     dep_cc
1901     doxygen
1902     extra_version
1903     gas
1904     host_cc
1905     host_cflags
1906     host_ld
1907     host_ldflags
1908     host_libs
1909     host_os
1910     install
1911     ld
1912     logfile
1913     malloc_prefix
1914     nm
1915     optflags
1916     pkg_config
1917     pkg_config_flags
1918     progs_suffix
1919     random_seed
1920     ranlib
1921     samples
1922     strip
1923     sws_max_filter_size
1924     sysinclude
1925     sysroot
1926     target_exec
1927     target_os
1928     target_path
1929     target_samples
1930     tempprefix
1931     toolchain
1932     valgrind
1933     yasmexe
1934 "
1935
1936 CMDLINE_APPEND="
1937     extra_cflags
1938     extra_cxxflags
1939     host_cppflags
1940 "
1941
1942 # code dependency declarations
1943
1944 # architecture extensions
1945
1946 armv5te_deps="arm"
1947 armv6_deps="arm"
1948 armv6t2_deps="arm"
1949 armv8_deps="aarch64"
1950 neon_deps_any="aarch64 arm"
1951 intrinsics_neon_deps="neon"
1952 vfp_deps_any="aarch64 arm"
1953 vfpv3_deps="vfp"
1954
1955 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1956
1957 mipsfpu_deps="mips"
1958 mips32r2_deps="mips"
1959 mipsdspr1_deps="mips"
1960 mipsdspr2_deps="mips"
1961
1962 altivec_deps="ppc"
1963 ppc4xx_deps="ppc"
1964 vsx_deps="ppc"
1965
1966 cpunop_deps="i686"
1967 x86_64_select="i686"
1968 x86_64_suggest="fast_cmov"
1969
1970 amd3dnow_deps="mmx"
1971 amd3dnowext_deps="amd3dnow"
1972 i686_deps="x86"
1973 mmx_deps="x86"
1974 mmxext_deps="mmx"
1975 sse_deps="mmxext"
1976 sse2_deps="sse"
1977 sse3_deps="sse2"
1978 ssse3_deps="sse3"
1979 sse4_deps="ssse3"
1980 sse42_deps="sse4"
1981 avx_deps="sse42"
1982 xop_deps="avx"
1983 fma3_deps="avx"
1984 fma4_deps="avx"
1985 avx2_deps="avx"
1986
1987 mmx_external_deps="yasm"
1988 mmx_inline_deps="inline_asm"
1989 mmx_suggest="mmx_external mmx_inline"
1990
1991 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1992     eval dep=\$${ext}_deps
1993     eval ${ext}_external_deps='"${dep}_external"'
1994     eval ${ext}_inline_deps='"${dep}_inline"'
1995     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1996 done
1997
1998 aligned_stack_if_any="aarch64 ppc x86"
1999 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
2000 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
2001 fast_unaligned_if_any="aarch64 ppc x86"
2002 simd_align_16_if_any="altivec neon sse"
2003
2004 # system capabilities
2005
2006 symver_if_any="symver_asm_label symver_gnu_asm"
2007
2008 # threading support
2009 atomics_gcc_if="sync_val_compare_and_swap"
2010 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
2011 atomics_win32_if="MemoryBarrier"
2012 atomics_native_if_any="$ATOMICS_LIST"
2013 w32threads_deps="atomics_native"
2014 threads_if_any="$THREADS_LIST"
2015
2016 # subsystems
2017 dct_select="rdft"
2018 error_resilience_select="me_cmp"
2019 frame_thread_encoder_deps="encoders threads"
2020 intrax8_select="error_resilience"
2021 mdct_select="fft"
2022 rdft_select="fft"
2023 me_cmp_select="fdctdsp idctdsp pixblockdsp"
2024 mpeg_er_select="error_resilience"
2025 mpegaudio_select="mpegaudiodsp"
2026 mpegaudiodsp_select="dct"
2027 mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp videodsp"
2028 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
2029
2030 # decoders / encoders
2031 aac_decoder_select="mdct sinewin"
2032 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
2033 aac_latm_decoder_select="aac_decoder aac_latm_parser"
2034 ac3_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2035 ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
2036 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
2037 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2038 aic_decoder_select="golomb idctdsp"
2039 alac_encoder_select="lpc"
2040 als_decoder_select="bswapdsp"
2041 amrnb_decoder_select="lsp"
2042 amrwb_decoder_select="lsp"
2043 amv_decoder_select="sp5x_decoder exif"
2044 amv_encoder_select="aandcttables mpegvideoenc"
2045 ape_decoder_select="bswapdsp llauddsp"
2046 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2047 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2048 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2049 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2050 atrac1_decoder_select="mdct sinewin"
2051 atrac3_decoder_select="mdct"
2052 atrac3p_decoder_select="mdct sinewin"
2053 avrn_decoder_select="exif"
2054 bink_decoder_select="blockdsp hpeldsp"
2055 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
2056 binkaudio_rdft_decoder_select="mdct rdft sinewin"
2057 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2058 cllc_decoder_select="bswapdsp"
2059 comfortnoise_encoder_select="lpc"
2060 cook_decoder_select="audiodsp mdct sinewin"
2061 cscd_decoder_select="lzo"
2062 cscd_decoder_suggest="zlib"
2063 dca_decoder_select="mdct"
2064 dirac_decoder_select="dwt golomb videodsp mpegvideoenc"
2065 dnxhd_decoder_select="blockdsp idctdsp"
2066 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2067 dvvideo_decoder_select="dvprofile idctdsp"
2068 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2069 dxa_decoder_select="zlib"
2070 eac3_decoder_select="ac3_decoder"
2071 eac3_encoder_select="ac3_encoder"
2072 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2073 eatgq_decoder_select="aandcttables"
2074 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpeg1video_decoder"
2075 exr_decoder_select="zlib"
2076 ffv1_decoder_select="golomb rangecoder"
2077 ffv1_encoder_select="rangecoder"
2078 ffvhuff_decoder_select="huffyuv_decoder"
2079 ffvhuff_encoder_select="huffyuv_encoder"
2080 fic_decoder_select="golomb"
2081 flac_decoder_select="golomb"
2082 flac_encoder_select="bswapdsp golomb lpc"
2083 flashsv_decoder_select="zlib"
2084 flashsv_encoder_select="zlib"
2085 flashsv2_encoder_select="zlib"
2086 flashsv2_decoder_select="zlib"
2087 flv_decoder_select="h263_decoder"
2088 flv_encoder_select="h263_encoder"
2089 fourxm_decoder_select="blockdsp bswapdsp"
2090 fraps_decoder_select="bswapdsp huffman"
2091 g2m_decoder_select="blockdsp idctdsp zlib"
2092 g729_decoder_select="audiodsp"
2093 h261_decoder_select="mpeg_er mpegvideo"
2094 h261_encoder_select="aandcttables mpegvideoenc"
2095 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2096 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2097 h263i_decoder_select="h263_decoder"
2098 h263p_encoder_select="h263_encoder"
2099 h264_decoder_select="cabac golomb h264chroma h264dsp h264pred h264qpel startcode videodsp"
2100 h264_decoder_suggest="error_resilience"
2101 hevc_decoder_select="bswapdsp cabac golomb videodsp"
2102 huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
2103 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llviddsp"
2104 iac_decoder_select="imc_decoder"
2105 imc_decoder_select="bswapdsp fft mdct sinewin"
2106 indeo3_decoder_select="hpeldsp"
2107 interplay_video_decoder_select="hpeldsp"
2108 jpegls_decoder_select="golomb mjpeg_decoder"
2109 jpegls_encoder_select="golomb"
2110 jv_decoder_select="blockdsp"
2111 lagarith_decoder_select="huffyuvdsp"
2112 ljpeg_encoder_select="aandcttables idctdsp"
2113 loco_decoder_select="golomb"
2114 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2115 metasound_decoder_select="lsp mdct sinewin"
2116 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2117 mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp"
2118 mjpeg_encoder_select="aandcttables mpegvideoenc"
2119 mjpegb_decoder_select="mjpeg_decoder"
2120 mlp_decoder_select="mlp_parser"
2121 motionpixels_decoder_select="bswapdsp"
2122 mp1_decoder_select="mpegaudio"
2123 mp1float_decoder_select="mpegaudio"
2124 mp2_decoder_select="mpegaudio"
2125 mp2float_decoder_select="mpegaudio"
2126 mp3_decoder_select="mpegaudio"
2127 mp3adu_decoder_select="mpegaudio"
2128 mp3adufloat_decoder_select="mpegaudio"
2129 mp3float_decoder_select="mpegaudio"
2130 mp3on4_decoder_select="mpegaudio"
2131 mp3on4float_decoder_select="mpegaudio"
2132 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2133 mpc8_decoder_select="mpegaudiodsp"
2134 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
2135 mpeg_xvmc_decoder_select="mpeg2video_decoder"
2136 mpegvideo_decoder_select="error_resilience mpeg_er mpegvideo"
2137 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2138 mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
2139 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2140 mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
2141 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2142 mpeg4_encoder_select="h263_encoder"
2143 msmpeg4v1_decoder_select="h263_decoder"
2144 msmpeg4v2_decoder_select="h263_decoder"
2145 msmpeg4v2_encoder_select="h263_encoder"
2146 msmpeg4v3_decoder_select="h263_decoder"
2147 msmpeg4v3_encoder_select="h263_encoder"
2148 mss2_decoder_select="error_resilience mpeg_er qpeldsp vc1_decoder"
2149 mxpeg_decoder_select="mjpeg_decoder"
2150 nellymoser_decoder_select="mdct sinewin"
2151 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2152 nuv_decoder_select="idctdsp lzo"
2153 on2avc_decoder_select="mdct"
2154 opus_decoder_deps="swresample"
2155 png_decoder_select="zlib"
2156 png_encoder_select="huffyuvencdsp zlib"
2157 prores_decoder_select="blockdsp idctdsp"
2158 prores_encoder_select="fdctdsp"
2159 qcelp_decoder_select="lsp"
2160 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2161 ra_144_encoder_select="audio_frame_queue lpc audiodsp"
2162 ra_144_decoder_select="audiodsp"
2163 ralf_decoder_select="golomb"
2164 rawvideo_decoder_select="bswapdsp"
2165 rtjpeg_decoder_select="me_cmp"
2166 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2167 rv10_encoder_select="h263_encoder"
2168 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2169 rv20_encoder_select="h263_encoder"
2170 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2171 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo videodsp"
2172 shorten_decoder_select="golomb"
2173 sipr_decoder_select="lsp"
2174 snow_decoder_select="dwt h264qpel hpeldsp rangecoder"
2175 snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
2176 sonic_decoder_select="golomb rangecoder"
2177 sonic_encoder_select="golomb rangecoder"
2178 sonic_ls_encoder_select="golomb rangecoder"
2179 sp5x_decoder_select="mjpeg_decoder"
2180 svq1_decoder_select="hpeldsp"
2181 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2182 svq3_decoder_select="h264_decoder hpeldsp tpeldsp"
2183 svq3_decoder_suggest="zlib"
2184 tak_decoder_select="audiodsp"
2185 theora_decoder_select="vp3_decoder"
2186 thp_decoder_select="mjpeg_decoder"
2187 tiff_decoder_suggest="zlib"
2188 tiff_encoder_suggest="zlib"
2189 truehd_decoder_select="mlp_parser"
2190 truemotion2_decoder_select="bswapdsp"
2191 truespeech_decoder_select="bswapdsp"
2192 tscc_decoder_select="zlib"
2193 twinvq_decoder_select="mdct lsp sinewin"
2194 utvideo_decoder_select="bswapdsp"
2195 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2196 vble_decoder_select="huffyuvdsp"
2197 vc1_decoder_select="blockdsp error_resilience h263_decoder h264chroma h264qpel intrax8 mpeg_er qpeldsp startcode"
2198 vc1image_decoder_select="vc1_decoder"
2199 vorbis_decoder_select="mdct"
2200 vorbis_encoder_select="mdct"
2201 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2202 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp"
2203 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp"
2204 vp6a_decoder_select="vp6_decoder"
2205 vp6f_decoder_select="vp6_decoder"
2206 vp7_decoder_select="h264pred videodsp"
2207 vp8_decoder_select="h264pred videodsp"
2208 vp9_decoder_select="videodsp vp9_parser"
2209 webp_decoder_select="vp8_decoder"
2210 wmalossless_decoder_select="llauddsp"
2211 wmapro_decoder_select="mdct sinewin"
2212 wmav1_decoder_select="mdct sinewin"
2213 wmav1_encoder_select="mdct sinewin"
2214 wmav2_decoder_select="mdct sinewin"
2215 wmav2_encoder_select="mdct sinewin"
2216 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2217 wmv1_decoder_select="h263_decoder"
2218 wmv1_encoder_select="h263_encoder"
2219 wmv2_decoder_select="blockdsp h263_decoder idctdsp intrax8 videodsp"
2220 wmv2_encoder_select="h263_encoder"
2221 wmv3_decoder_select="vc1_decoder"
2222 wmv3image_decoder_select="wmv3_decoder"
2223 zerocodec_decoder_select="zlib"
2224 zlib_decoder_select="zlib"
2225 zlib_encoder_select="zlib"
2226 zmbv_decoder_select="zlib"
2227 zmbv_encoder_select="zlib"
2228
2229 # hardware accelerators
2230 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
2231 dxva2_deps="dxva2api_h"
2232 vaapi_deps="va_va_h"
2233 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
2234 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2235 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
2236 xvmc_deps="X11_extensions_XvMClib_h"
2237
2238 h263_vaapi_hwaccel_deps="vaapi"
2239 h263_vaapi_hwaccel_select="h263_decoder"
2240 h263_vdpau_hwaccel_deps="vdpau"
2241 h263_vdpau_hwaccel_select="h263_decoder"
2242 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
2243 h264_dxva2_hwaccel_deps="dxva2"
2244 h264_dxva2_hwaccel_select="h264_decoder"
2245 h264_vaapi_hwaccel_deps="vaapi"
2246 h264_vaapi_hwaccel_select="h264_decoder"
2247 h264_vda_decoder_deps="vda"
2248 h264_vda_decoder_select="h264_decoder"
2249 h264_vda_hwaccel_deps="vda"
2250 h264_vda_hwaccel_select="h264_decoder"
2251 h264_vda_old_hwaccel_deps="vda"
2252 h264_vda_old_hwaccel_select="h264_decoder"
2253 h264_vdpau_decoder_deps="vdpau"
2254 h264_vdpau_decoder_select="h264_decoder"
2255 h264_vdpau_hwaccel_deps="vdpau"
2256 h264_vdpau_hwaccel_select="h264_decoder"
2257 mpeg_vdpau_decoder_deps="vdpau"
2258 mpeg_vdpau_decoder_select="mpeg2video_decoder"
2259 mpeg_xvmc_hwaccel_deps="xvmc"
2260 mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
2261 mpeg1_vdpau_decoder_deps="vdpau"
2262 mpeg1_vdpau_decoder_select="mpeg1video_decoder"
2263 mpeg1_vdpau_hwaccel_deps="vdpau"
2264 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2265 mpeg1_xvmc_hwaccel_deps="xvmc"
2266 mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
2267 mpeg2_crystalhd_decoder_select="crystalhd"
2268 mpeg2_dxva2_hwaccel_deps="dxva2"
2269 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2270 mpeg2_vaapi_hwaccel_deps="vaapi"
2271 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2272 mpeg2_vdpau_hwaccel_deps="vdpau"
2273 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2274 mpeg2_xvmc_hwaccel_deps="xvmc"
2275 mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
2276 mpeg4_crystalhd_decoder_select="crystalhd"
2277 mpeg4_vaapi_hwaccel_deps="vaapi"
2278 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2279 mpeg4_vdpau_decoder_deps="vdpau"
2280 mpeg4_vdpau_decoder_select="mpeg4_decoder"
2281 mpeg4_vdpau_hwaccel_deps="vdpau"
2282 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2283 msmpeg4_crystalhd_decoder_select="crystalhd"
2284 vc1_crystalhd_decoder_select="crystalhd"
2285 vc1_dxva2_hwaccel_deps="dxva2"
2286 vc1_dxva2_hwaccel_select="vc1_decoder"
2287 vc1_vaapi_hwaccel_deps="vaapi"
2288 vc1_vaapi_hwaccel_select="vc1_decoder"
2289 vc1_vdpau_decoder_deps="vdpau"
2290 vc1_vdpau_decoder_select="vc1_decoder"
2291 vc1_vdpau_hwaccel_deps="vdpau"
2292 vc1_vdpau_hwaccel_select="vc1_decoder"
2293 wmv3_crystalhd_decoder_select="crystalhd"
2294 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2295 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2296 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2297 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2298
2299 # parsers
2300 h264_parser_select="h264_decoder"
2301 hevc_parser_select="hevc_decoder"
2302 mpegvideo_parser_select="mpegvideo"
2303 mpeg4video_parser_select="error_resilience h263dsp mpeg_er mpegvideo qpeldsp"
2304 vc1_parser_select="mpegvideo startcode vc1_decoder"
2305
2306 # external libraries
2307 libaacplus_encoder_deps="libaacplus"
2308 libcelt_decoder_deps="libcelt"
2309 libfaac_encoder_deps="libfaac"
2310 libfaac_encoder_select="audio_frame_queue"
2311 libfdk_aac_decoder_deps="libfdk_aac"
2312 libfdk_aac_encoder_deps="libfdk_aac"
2313 libfdk_aac_encoder_select="audio_frame_queue"
2314 libgme_demuxer_deps="libgme"
2315 libgsm_decoder_deps="libgsm"
2316 libgsm_encoder_deps="libgsm"
2317 libgsm_ms_decoder_deps="libgsm"
2318 libgsm_ms_encoder_deps="libgsm"
2319 libilbc_decoder_deps="libilbc"
2320 libilbc_encoder_deps="libilbc"
2321 libmodplug_demuxer_deps="libmodplug"
2322 libmp3lame_encoder_deps="libmp3lame"
2323 libmp3lame_encoder_select="audio_frame_queue"
2324 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2325 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2326 libopencore_amrnb_encoder_select="audio_frame_queue"
2327 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2328 libopenjpeg_decoder_deps="libopenjpeg"
2329 libopenjpeg_encoder_deps="libopenjpeg"
2330 libopus_decoder_deps="libopus"
2331 libopus_encoder_deps="libopus"
2332 libopus_encoder_select="audio_frame_queue"
2333 libquvi_demuxer_deps="libquvi"
2334 libschroedinger_decoder_deps="libschroedinger"
2335 libschroedinger_encoder_deps="libschroedinger"
2336 libshine_encoder_deps="libshine"
2337 libshine_encoder_select="audio_frame_queue"
2338 libspeex_decoder_deps="libspeex"
2339 libspeex_encoder_deps="libspeex"
2340 libspeex_encoder_select="audio_frame_queue"
2341 libstagefright_h264_decoder_deps="libstagefright_h264"
2342 libtheora_encoder_deps="libtheora"
2343 libtwolame_encoder_deps="libtwolame"
2344 libvo_aacenc_encoder_deps="libvo_aacenc"
2345 libvo_aacenc_encoder_select="audio_frame_queue"
2346 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2347 libvorbis_decoder_deps="libvorbis"
2348 libvorbis_encoder_deps="libvorbis"
2349 libvorbis_encoder_select="audio_frame_queue"
2350 libvpx_vp8_decoder_deps="libvpx"
2351 libvpx_vp8_encoder_deps="libvpx"
2352 libvpx_vp9_decoder_deps="libvpx"
2353 libvpx_vp9_encoder_deps="libvpx"
2354 libwavpack_encoder_deps="libwavpack"
2355 libwebp_encoder_deps="libwebp"
2356 libx264_encoder_deps="libx264"
2357 libx264rgb_encoder_deps="libx264"
2358 libx265_encoder_deps="libx265"
2359 libxavs_encoder_deps="libxavs"
2360 libxvid_encoder_deps="libxvid"
2361 libutvideo_decoder_deps="libutvideo"
2362 libutvideo_encoder_deps="libutvideo"
2363 libzvbi_teletext_decoder_deps="libzvbi"
2364
2365 # demuxers / muxers
2366 ac3_demuxer_select="ac3_parser"
2367 asf_demuxer_select="riffdec"
2368 asf_muxer_select="riffenc"
2369 asf_stream_muxer_select="asf_muxer"
2370 avi_demuxer_select="riffdec exif"
2371 avi_muxer_select="riffenc"
2372 avisynth_demuxer_deps="avisynth"
2373 avisynth_demuxer_select="riffdec"
2374 caf_demuxer_select="riffdec"
2375 dirac_demuxer_select="dirac_parser"
2376 dts_demuxer_select="dca_parser"
2377 dtshd_demuxer_select="dca_parser"
2378 dv_demuxer_select="dvprofile"
2379 dv_muxer_select="dvprofile"
2380 dxa_demuxer_select="riffdec"
2381 eac3_demuxer_select="ac3_parser"
2382 f4v_muxer_select="mov_muxer"
2383 flac_demuxer_select="flac_parser"
2384 hds_muxer_select="flv_muxer"
2385 hls_muxer_select="mpegts_muxer"
2386 image2_alias_pix_demuxer_select="image2_demuxer"
2387 image2_brender_pix_demuxer_select="image2_demuxer"
2388 ipod_muxer_select="mov_muxer"
2389 ismv_muxer_select="mov_muxer"
2390 libnut_demuxer_deps="libnut"
2391 libnut_muxer_deps="libnut"
2392 matroska_audio_muxer_select="matroska_muxer"
2393 matroska_demuxer_select="riffdec"
2394 matroska_demuxer_suggest="bzlib lzo zlib"
2395 matroska_muxer_select="riffenc"
2396 mmf_muxer_select="riffenc"
2397 mov_demuxer_select="riffdec"
2398 mov_demuxer_suggest="zlib"
2399 mov_muxer_select="riffenc rtpenc_chain"
2400 mp3_demuxer_select="mpegaudio_parser"
2401 mp4_muxer_select="mov_muxer"
2402 mpegts_muxer_select="adts_muxer latm_muxer"
2403 mpegtsraw_demuxer_select="mpegts_demuxer"
2404 mxf_d10_muxer_select="mxf_muxer"
2405 nut_muxer_select="riffenc"
2406 nuv_demuxer_select="riffdec"
2407 ogg_demuxer_select="golomb"
2408 psp_muxer_select="mov_muxer"
2409 rtp_demuxer_select="sdp_demuxer"
2410 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
2411 rtsp_demuxer_select="http_protocol rtpdec"
2412 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2413 sap_demuxer_select="sdp_demuxer"
2414 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2415 sdp_demuxer_select="rtpdec"
2416 smoothstreaming_muxer_select="ismv_muxer"
2417 spdif_muxer_select="aac_parser"
2418 tak_demuxer_select="tak_parser"
2419 tg2_muxer_select="mov_muxer"
2420 tgp_muxer_select="mov_muxer"
2421 vobsub_demuxer_select="mpegps_demuxer"
2422 w64_demuxer_select="wav_demuxer"
2423 w64_muxer_select="wav_muxer"
2424 wav_demuxer_select="riffdec"
2425 wav_muxer_select="riffenc"
2426 webm_muxer_select="riffenc"
2427 wtv_demuxer_select="riffdec"
2428 wtv_muxer_select="riffenc"
2429 xmv_demuxer_select="riffdec"
2430 xwma_demuxer_select="riffdec"
2431
2432 # indevs / outdevs
2433 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
2434 alsa_outdev_deps="alsa_asoundlib_h"
2435 avfoundation_indev_extralibs="-framework CoreVideo -framework Foundation -framework AVFoundation -framework CoreMedia"
2436 avfoundation_indev_select="avfoundation"
2437 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2438 caca_outdev_deps="libcaca"
2439 decklink_outdev_deps="decklink pthreads"
2440 decklink_outdev_extralibs="-lstdc++"
2441 dshow_indev_deps="IBaseFilter"
2442 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
2443 dv1394_indev_deps="dv1394"
2444 dv1394_indev_select="dv_demuxer"
2445 fbdev_indev_deps="linux_fb_h"
2446 fbdev_outdev_deps="linux_fb_h"
2447 gdigrab_indev_deps="CreateDIBSection"
2448 gdigrab_indev_extralibs="-lgdi32"
2449 gdigrab_indev_select="bmp_decoder"
2450 iec61883_indev_deps="libiec61883"
2451 jack_indev_deps="jack_jack_h sem_timedwait"
2452 lavfi_indev_deps="avfilter"
2453 libcdio_indev_deps="libcdio"
2454 libdc1394_indev_deps="libdc1394"
2455 libv4l2_indev_deps="libv4l2"
2456 openal_indev_deps="openal"
2457 opengl_outdev_deps="opengl"
2458 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2459 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2460 pulse_indev_deps="libpulse"
2461 pulse_outdev_deps="libpulse"
2462 qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
2463 qtkit_indev_select="qtkit"
2464 sdl_outdev_deps="sdl"
2465 sndio_indev_deps="sndio_h"
2466 sndio_outdev_deps="sndio_h"
2467 v4l_indev_deps="linux_videodev_h"
2468 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2469 v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
2470 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
2471 vfwcap_indev_extralibs="-lavicap32"
2472 xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
2473 xv_outdev_extralibs="-lXv -lX11 -lXext"
2474 x11grab_indev_deps="x11grab"
2475
2476 # protocols
2477 bluray_protocol_deps="libbluray"
2478 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
2479 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
2480 ffrtmpcrypt_protocol_select="tcp_protocol"
2481 ffrtmphttp_protocol_deps="!librtmp_protocol"
2482 ffrtmphttp_protocol_select="http_protocol"
2483 ftp_protocol_select="tcp_protocol"
2484 gopher_protocol_select="network"
2485 http_protocol_select="tcp_protocol"
2486 httpproxy_protocol_select="tcp_protocol"
2487 https_protocol_select="tls_protocol"
2488 icecast_protocol_select="http_protocol"
2489 librtmp_protocol_deps="librtmp"
2490 librtmpe_protocol_deps="librtmp"
2491 librtmps_protocol_deps="librtmp"
2492 librtmpt_protocol_deps="librtmp"
2493 librtmpte_protocol_deps="librtmp"
2494 libsmbclient_protocol_deps="libsmbclient gplv3"
2495 libssh_protocol_deps="libssh"
2496 mmsh_protocol_select="http_protocol"
2497 mmst_protocol_select="network"
2498 rtmp_protocol_deps="!librtmp_protocol"
2499 rtmp_protocol_select="tcp_protocol"
2500 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2501 rtmps_protocol_deps="!librtmp_protocol"
2502 rtmps_protocol_select="tls_protocol"
2503 rtmpt_protocol_select="ffrtmphttp_protocol"
2504 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2505 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2506 rtp_protocol_select="udp_protocol"
2507 sctp_protocol_deps="struct_sctp_event_subscribe"
2508 sctp_protocol_select="network"
2509 srtp_protocol_select="rtp_protocol"
2510 tcp_protocol_select="network"
2511 tls_protocol_deps_any="openssl gnutls"
2512 tls_protocol_select="tcp_protocol"
2513 udp_protocol_select="network"
2514 unix_protocol_deps="sys_un_h"
2515 unix_protocol_select="network"
2516
2517 # filters
2518 aconvert_filter_deps="swresample"
2519 amovie_filter_deps="avcodec avformat"
2520 aresample_filter_deps="swresample"
2521 ass_filter_deps="libass"
2522 asyncts_filter_deps="avresample"
2523 atempo_filter_deps="avcodec"
2524 atempo_filter_select="rdft"
2525 azmq_filter_deps="libzmq"
2526 blackframe_filter_deps="gpl"
2527 boxblur_filter_deps="gpl"
2528 bs2b_filter_deps="libbs2b"
2529 colormatrix_filter_deps="gpl"
2530 cropdetect_filter_deps="gpl"
2531 delogo_filter_deps="gpl"
2532 deshake_filter_select="pixelutils"
2533 drawtext_filter_deps="libfreetype"
2534 ebur128_filter_deps="gpl"
2535 flite_filter_deps="libflite"
2536 frei0r_filter_deps="frei0r dlopen"
2537 frei0r_filter_extralibs='$ldl'
2538 frei0r_src_filter_deps="frei0r dlopen"
2539 frei0r_src_filter_extralibs='$ldl'
2540 geq_filter_deps="gpl"
2541 histeq_filter_deps="gpl"
2542 hqdn3d_filter_deps="gpl"
2543 interlace_filter_deps="gpl"
2544 kerndeint_filter_deps="gpl"
2545 ladspa_filter_deps="ladspa dlopen"
2546 ladspa_filter_extralibs='$ldl'
2547 mcdeint_filter_deps="avcodec gpl"
2548 movie_filter_deps="avcodec avformat"
2549 mp_filter_deps="gpl avcodec swscale inline_asm"
2550 mpdecimate_filter_deps="gpl"
2551 mpdecimate_filter_select="pixelutils"
2552 mptestsrc_filter_deps="gpl"
2553 negate_filter_deps="lut_filter"
2554 perspective_filter_deps="gpl"
2555 ocv_filter_deps="libopencv"
2556 owdenoise_filter_deps="gpl"
2557 pan_filter_deps="swresample"
2558 phase_filter_deps="gpl"
2559 pp_filter_deps="gpl postproc"
2560 pullup_filter_deps="gpl"
2561 removelogo_filter_deps="avcodec avformat swscale"
2562 resample_filter_deps="avresample"
2563 sab_filter_deps="gpl swscale"
2564 scale_filter_deps="swscale"
2565 select_filter_select="pixelutils"
2566 smartblur_filter_deps="gpl swscale"
2567 showspectrum_filter_deps="avcodec"
2568 showspectrum_filter_select="rdft"
2569 spp_filter_deps="gpl avcodec"
2570 spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
2571 stereo3d_filter_deps="gpl"
2572 subtitles_filter_deps="avformat avcodec libass"
2573 super2xsai_filter_deps="gpl"
2574 tinterlace_filter_deps="gpl"
2575 vidstabdetect_filter_deps="libvidstab"
2576 vidstabtransform_filter_deps="libvidstab"
2577 pixfmts_super2xsai_test_deps="super2xsai_filter"
2578 tinterlace_merge_test_deps="tinterlace_filter"
2579 tinterlace_pad_test_deps="tinterlace_filter"
2580 zmq_filter_deps="libzmq"
2581 zoompan_filter_deps="swscale"
2582
2583 # examples
2584 avio_reading="avformat avcodec avutil"
2585 avcodec_example_deps="avcodec avutil"
2586 demuxing_decoding_example_deps="avcodec avformat avutil"
2587 filter_audio_example_deps="avfilter avutil"
2588 filtering_audio_example_deps="avfilter avcodec avformat avutil"
2589 filtering_video_example_deps="avfilter avcodec avformat avutil"
2590 metadata_example_deps="avformat avutil"
2591 muxing_example_deps="avcodec avformat avutil swscale"
2592 remuxing_example_deps="avcodec avformat avutil"
2593 resampling_audio_example_deps="avutil swresample"
2594 scaling_video_example_deps="avutil swscale"
2595 transcode_aac_example_deps="avcodec avformat swresample"
2596 transcoding_example_deps="avfilter avcodec avformat avutil"
2597
2598 # libraries, in linking order
2599 avcodec_deps="avutil"
2600 avdevice_deps="avformat avcodec avutil"
2601 avfilter_deps="avutil"
2602 avformat_deps="avcodec avutil"
2603 avresample_deps="avutil"
2604 postproc_deps="avutil gpl"
2605 swresample_deps="avutil"
2606 swscale_deps="avutil"
2607
2608 # programs
2609 ffmpeg_deps="avcodec avfilter avformat swresample"
2610 ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
2611                null_filter
2612                setpts_filter trim_filter"
2613 ffplay_deps="avcodec avformat swscale swresample sdl"
2614 ffplay_libs='$sdl_libs'
2615 ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
2616 ffprobe_deps="avcodec avformat"
2617 ffserver_deps="avformat fork sarestart"
2618 ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
2619
2620 # documentation
2621 podpages_deps="perl"
2622 manpages_deps="perl pod2man"
2623 htmlpages_deps="perl texi2html"
2624 txtpages_deps="perl makeinfo"
2625 doc_deps_any="manpages htmlpages podpages txtpages"
2626
2627 # default parameters
2628
2629 logfile="config.log"
2630
2631 # installation paths
2632 prefix_default="/usr/local"
2633 bindir_default='${prefix}/bin'
2634 datadir_default='${prefix}/share/ffmpeg'
2635 docdir_default='${prefix}/share/doc/ffmpeg'
2636 incdir_default='${prefix}/include'
2637 libdir_default='${prefix}/lib'
2638 mandir_default='${prefix}/share/man'
2639 shlibdir_default="$libdir_default"
2640
2641 # toolchain
2642 ar_default="ar"
2643 cc_default="gcc"
2644 cxx_default="g++"
2645 host_cc_default="gcc"
2646 cp_f="cp -f"
2647 doxygen_default="doxygen"
2648 install="install"
2649 ln_s="ln -s -f"
2650 nm_default="nm -g"
2651 objformat="elf"
2652 pkg_config_default=pkg-config
2653 ranlib_default="ranlib"
2654 strip_default="strip"
2655 yasmexe_default="yasm"
2656 windres_default="windres"
2657
2658 # OS
2659 target_os_default=$(tolower $(uname -s))
2660 host_os=$target_os_default
2661
2662 # machine
2663 if test "$target_os_default" = aix; then
2664     arch_default=$(uname -p)
2665     strip_default="strip -X32_64"
2666 else
2667     arch_default=$(uname -m)
2668 fi
2669 cpu="generic"
2670 intrinsics="none"
2671
2672 # configurable options
2673 enable $PROGRAM_LIST
2674 enable $DOCUMENT_LIST
2675 enable $EXAMPLE_LIST
2676 enable $(filter_out avresample $LIBRARY_LIST)
2677 enable stripping
2678
2679 enable asm
2680 enable debug
2681 enable doc
2682 enable optimizations
2683 enable runtime_cpudetect
2684 enable safe_bitstream_reader
2685 enable static
2686 enable swscale_alpha
2687
2688 sws_max_filter_size_default=256
2689 set_default sws_max_filter_size
2690
2691 # Enable hwaccels by default.
2692 enable dxva2 vaapi vda vdpau xvmc
2693 enable xlib
2694
2695 # build settings
2696 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2697 LIBPREF="lib"
2698 LIBSUF=".a"
2699 FULLNAME='$(NAME)$(BUILDSUF)'
2700 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
2701 SLIBPREF="lib"
2702 SLIBSUF=".so"
2703 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
2704 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2705 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2706 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2707 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2708 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2709
2710 asflags_filter=echo
2711 cflags_filter=echo
2712 ldflags_filter=echo
2713
2714 AS_C='-c'
2715 AS_O='-o $@'
2716 CC_C='-c'
2717 CC_E='-E -o $@'
2718 CC_O='-o $@'
2719 CXX_C='-c'
2720 CXX_O='-o $@'
2721 LD_O='-o $@'
2722 LD_LIB='-l%'
2723 LD_PATH='-L'
2724 HOSTCC_C='-c'
2725 HOSTCC_E='-E -o $@'
2726 HOSTCC_O='-o $@'
2727 HOSTLD_O='-o $@'
2728
2729 host_libs='-lm'
2730 host_cflags_filter=echo
2731 host_ldflags_filter=echo
2732
2733 target_path='$(CURDIR)'
2734
2735 # since the object filename is not given with the -MM flag, the compiler
2736 # is only able to print the basename, and we must add the path ourselves
2737 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2738 DEPFLAGS='-MM'
2739
2740 # find source path
2741 if test -f configure; then
2742     source_path=.
2743 else
2744     source_path=$(cd $(dirname "$0"); pwd)
2745     echo "$source_path" | grep -q '[[:blank:]]' &&
2746         die "Out of tree builds are impossible with whitespace in source path."
2747     test -e "$source_path/config.h" &&
2748         die "Out of tree builds are impossible with config.h in source dir."
2749 fi
2750
2751 for v in "$@"; do
2752     r=${v#*=}
2753     l=${v%"$r"}
2754     r=$(sh_quote "$r")
2755     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
2756 done
2757
2758 find_things(){
2759     thing=$1
2760     pattern=$2
2761     file=$source_path/$3
2762     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2763 }
2764
2765 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2766 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2767 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2768 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2769 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2770 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2771 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2772 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2773 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2774 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2775 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2776
2777 ALL_COMPONENTS="
2778     $BSF_LIST
2779     $DECODER_LIST
2780     $DEMUXER_LIST
2781     $ENCODER_LIST
2782     $FILTER_LIST
2783     $HWACCEL_LIST
2784     $INDEV_LIST
2785     $MUXER_LIST
2786     $OUTDEV_LIST
2787     $PARSER_LIST
2788     $PROTOCOL_LIST
2789 "
2790
2791 for n in $COMPONENT_LIST; do
2792     v=$(toupper ${n%s})_LIST
2793     eval enable \$$v
2794     eval ${n}_if_any="\$$v"
2795 done
2796
2797 enable $ARCH_EXT_LIST
2798
2799 die_unknown(){
2800     echo "Unknown option \"$1\"."
2801     echo "See $0 --help for available options."
2802     exit 1
2803 }
2804
2805 print_3_columns() {
2806     cat | tr ' ' '\n' | sort | pr -r -3 -t
2807 }
2808
2809 show_list() {
2810     suffix=_$1
2811     shift
2812     echo $* | sed s/$suffix//g | print_3_columns
2813     exit 0
2814 }
2815
2816 rand_list(){
2817     IFS=', '
2818     set -- $*
2819     unset IFS
2820     for thing; do
2821         comp=${thing%:*}
2822         prob=${thing#$comp}
2823         prob=${prob#:}
2824         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2825         echo "prob ${prob:-0.5}"
2826         printf '%s\n' $comp
2827     done
2828 }
2829
2830 do_random(){
2831     action=$1
2832     shift
2833     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2834     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2835 }
2836
2837 for opt do
2838     optval="${opt#*=}"
2839     case "$opt" in
2840         --extra-ldflags=*)
2841             add_ldflags $optval
2842         ;;
2843         --extra-ldexeflags=*)
2844             add_ldexeflags $optval
2845         ;;
2846         --extra-libs=*)
2847             add_extralibs $optval
2848         ;;
2849         --disable-devices)
2850             disable $INDEV_LIST $OUTDEV_LIST
2851         ;;
2852         --enable-debug=*)
2853             debuglevel="$optval"
2854         ;;
2855         --disable-programs)
2856             disable $PROGRAM_LIST
2857         ;;
2858         --disable-everything)
2859             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2860         ;;
2861         --disable-all)
2862             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2863             disable $LIBRARY_LIST $PROGRAM_LIST doc
2864         ;;
2865         --enable-random|--disable-random)
2866             action=${opt%%-random}
2867             do_random ${action#--} $COMPONENT_LIST
2868         ;;
2869         --enable-random=*|--disable-random=*)
2870             action=${opt%%-random=*}
2871             do_random ${action#--} $optval
2872         ;;
2873         --enable-*=*|--disable-*=*)
2874             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2875             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2876             eval list=\$$(toupper $thing)_LIST
2877             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2878             list=$(filter "$name" $list)
2879             [ "$list" = "" ] && warn "Option $opt did not match anything"
2880             $action $list
2881         ;;
2882         --enable-?*|--disable-?*)
2883             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2884             if is_in $option $COMPONENT_LIST; then
2885                 test $action = disable && action=unset
2886                 eval $action \$$(toupper ${option%s})_LIST
2887             elif is_in $option $CMDLINE_SELECT; then
2888                 $action $option
2889             else
2890                 die_unknown $opt
2891             fi
2892         ;;
2893         --list-*)
2894             NAME="${opt#--list-}"
2895             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2896             NAME=${NAME%s}
2897             eval show_list $NAME \$$(toupper $NAME)_LIST
2898         ;;
2899         --help|-h) show_help
2900         ;;
2901         --fatal-warnings) enable fatal_warnings
2902         ;;
2903         *)
2904             optname="${opt%%=*}"
2905             optname="${optname#--}"
2906             optname=$(echo "$optname" | sed 's/-/_/g')
2907             if is_in $optname $CMDLINE_SET; then
2908                 eval $optname='$optval'
2909             elif is_in $optname $CMDLINE_APPEND; then
2910                 append $optname "$optval"
2911             else
2912                 die_unknown $opt
2913             fi
2914         ;;
2915     esac
2916 done
2917
2918 disabled logging && logfile=/dev/null
2919
2920 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2921 set >> $logfile
2922
2923 test -n "$cross_prefix" && enable cross_compile
2924
2925 if enabled cross_compile; then
2926     test -n "$arch" && test -n "$target_os" ||
2927         die "Must specify target arch and OS when cross-compiling"
2928 fi
2929
2930 ar_default="${cross_prefix}${ar_default}"
2931 cc_default="${cross_prefix}${cc_default}"
2932 cxx_default="${cross_prefix}${cxx_default}"
2933 nm_default="${cross_prefix}${nm_default}"
2934 pkg_config_default="${cross_prefix}${pkg_config_default}"
2935 ranlib_default="${cross_prefix}${ranlib_default}"
2936 strip_default="${cross_prefix}${strip_default}"
2937 windres_default="${cross_prefix}${windres_default}"
2938
2939 sysinclude_default="${sysroot}/usr/include"
2940
2941 test -n "$valgrind" && toolchain="valgrind-memcheck"
2942
2943 case "$toolchain" in
2944     clang-asan)
2945         cc_default="clang"
2946         add_cflags  -fsanitize=address
2947         add_ldflags -fsanitize=address
2948     ;;
2949     clang-tsan)
2950         cc_default="clang"
2951         add_cflags  -fsanitize=thread -pie
2952         add_ldflags -fsanitize=thread -pie
2953     ;;
2954     clang-usan)
2955         cc_default="clang"
2956         add_cflags  -fsanitize=undefined
2957         add_ldflags -fsanitize=undefined
2958     ;;
2959     gcc-asan)
2960         cc_default="gcc"
2961         add_cflags  -fsanitize=address
2962         add_ldflags -fsanitize=address
2963     ;;
2964     gcc-tsan)
2965         cc_default="gcc"
2966         add_cflags  -fsanitize=thread -pie -fPIC
2967         add_ldflags -fsanitize=thread -pie -fPIC
2968     ;;
2969     gcc-usan)
2970         cc_default="gcc"
2971         add_cflags  -fsanitize=undefined
2972         add_ldflags -fsanitize=undefined
2973     ;;
2974     valgrind-massif)
2975         target_exec_default=${valgrind:-"valgrind"}
2976         target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
2977     ;;
2978     valgrind-memcheck)
2979         target_exec_default=${valgrind:-"valgrind"}
2980         target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
2981     ;;
2982     msvc)
2983         # Check whether the current MSVC version needs the C99 converter.
2984         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2985         # support enough of C99 to build ffmpeg. Default to the new
2986         # behaviour if the regexp was unable to match anything, since this
2987         # successfully parses the version number of existing supported
2988         # versions that require the converter (MSVC 2010 and 2012).
2989         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2990         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2991             cc_default="cl"
2992         else
2993             cc_default="c99wrap cl"
2994         fi
2995         ld_default="link"
2996         nm_default="dumpbin -symbols"
2997         ar_default="lib"
2998         target_os_default="win32"
2999         # Use a relative path for TMPDIR. This makes sure all the
3000         # ffconf temp files are written with a relative path, avoiding
3001         # issues with msys/win32 path conversion for MSVC parameters
3002         # such as -Fo<file> or -out:<file>.
3003         TMPDIR=.
3004     ;;
3005     icl)
3006         cc_default="icl"
3007         ld_default="xilink"
3008         nm_default="dumpbin -symbols"
3009         ar_default="xilib"
3010         target_os_default="win32"
3011         TMPDIR=.
3012     ;;
3013     gcov)
3014         add_cflags  -fprofile-arcs -ftest-coverage
3015         add_ldflags -fprofile-arcs -ftest-coverage
3016     ;;
3017     hardened)
3018         add_cflags  -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow -fstack-protector-all
3019         add_ldflags -Wl,-z,relro -Wl,-z,now
3020     ;;
3021     ?*)
3022         die "Unknown toolchain $toolchain"
3023     ;;
3024 esac
3025
3026 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
3027     target_exec target_os yasmexe
3028 enabled cross_compile || host_cc_default=$cc
3029 set_default host_cc
3030
3031 if ! $pkg_config --version >/dev/null 2>&1; then
3032     warn "$pkg_config not found, library detection may fail."
3033     pkg_config=false
3034 fi
3035
3036 if test $doxygen != $doxygen_default && \
3037   ! $doxygen --version >/dev/null 2>&1; then
3038     warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
3039 fi
3040
3041 exesuf() {
3042     case $1 in
3043         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3044     esac
3045 }
3046
3047 EXESUF=$(exesuf $target_os)
3048 HOSTEXESUF=$(exesuf $host_os)
3049
3050 # set temporary file name
3051 : ${TMPDIR:=$TEMPDIR}
3052 : ${TMPDIR:=$TMP}
3053 : ${TMPDIR:=/tmp}
3054
3055 if [ -n "$tempprefix" ] ; then
3056     mktemp(){
3057         echo $tempprefix.${HOSTNAME}.${UID}
3058     }
3059 elif ! check_cmd mktemp -u XXXXXX; then
3060     # simple replacement for missing mktemp
3061     # NOT SAFE FOR GENERAL USE
3062     mktemp(){
3063         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3064     }
3065 fi
3066
3067 tmpfile(){
3068     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
3069         (set -C; exec > $tmp) 2>/dev/null ||
3070         die "Unable to create temporary file in $TMPDIR."
3071     append TMPFILES $tmp
3072     eval $1=$tmp
3073 }
3074
3075 trap 'rm -f -- $TMPFILES' EXIT
3076
3077 tmpfile TMPASM .asm
3078 tmpfile TMPC   .c
3079 tmpfile TMPCPP .cpp
3080 tmpfile TMPE   $EXESUF
3081 tmpfile TMPH   .h
3082 tmpfile TMPM   .m
3083 tmpfile TMPO   .o
3084 tmpfile TMPS   .S
3085 tmpfile TMPSH  .sh
3086 tmpfile TMPV   .ver
3087
3088 unset -f mktemp
3089
3090 chmod +x $TMPE
3091
3092 # make sure we can execute files in $TMPDIR
3093 cat > $TMPSH 2>> $logfile <<EOF
3094 #! /bin/sh
3095 EOF
3096 chmod +x $TMPSH >> $logfile 2>&1
3097 if ! $TMPSH >> $logfile 2>&1; then
3098     cat <<EOF
3099 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3100 variable to another directory and make sure that it is not mounted noexec.
3101 EOF
3102     die "Sanity test failed."
3103 fi
3104
3105 armasm_flags(){
3106     for flag; do
3107         case $flag in
3108             # Filter out MSVC cl.exe options from cflags that shouldn't
3109             # be passed to gas-preprocessor
3110             -M[TD]*)                                            ;;
3111             *)                  echo $flag                      ;;
3112         esac
3113    done
3114 }
3115
3116 ccc_flags(){
3117     for flag; do
3118         case $flag in
3119             -std=c99)           echo -c99                       ;;
3120             -mcpu=*)            echo -arch ${flag#*=}           ;;
3121             -mieee)             echo -ieee                      ;;
3122             -O*|-fast)          echo $flag                      ;;
3123             -fno-math-errno)    echo -assume nomath_errno       ;;
3124             -g)                 echo -g3                        ;;
3125             -Wall)              echo -msg_enable level2         ;;
3126             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3127             -Wl,*)              echo $flag                      ;;
3128             -f*|-W*)                                            ;;
3129             *)                  echo $flag                      ;;
3130         esac
3131    done
3132 }
3133
3134 cparser_flags(){
3135     for flag; do
3136         case $flag in
3137             -Wno-switch)             echo -Wno-switch-enum ;;
3138             -Wno-format-zero-length) ;;
3139             -Wdisabled-optimization) ;;
3140             -Wno-pointer-sign)       echo -Wno-other ;;
3141             *)                       echo $flag ;;
3142         esac
3143     done
3144 }
3145
3146 msvc_common_flags(){
3147     for flag; do
3148         case $flag in
3149             # In addition to specifying certain flags under the compiler
3150             # specific filters, they must be specified here as well or else the
3151             # generic catch all at the bottom will print the original flag.
3152             -Wall)                ;;
3153             -std=c99)             ;;
3154             # Common flags
3155             -fomit-frame-pointer) ;;
3156             -g)                   echo -Z7 ;;
3157             -fno-math-errno)      ;;
3158             -fno-common)          ;;
3159             -fno-signed-zeros)    ;;
3160             -fPIC)                ;;
3161             -mthumb)              ;;
3162             -march=*)             ;;
3163             -lz)                  echo zlib.lib ;;
3164             -lavifil32)           echo vfw32.lib ;;
3165             -lavicap32)           echo vfw32.lib user32.lib ;;
3166             -l*)                  echo ${flag#-l}.lib ;;
3167             *)                    echo $flag ;;
3168         esac
3169     done
3170 }
3171
3172 msvc_flags(){
3173     msvc_common_flags "$@"
3174     for flag; do
3175         case $flag in
3176             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3177                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3178                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3179                                        -wd4554 \
3180                                        -wd4273 ;;
3181         esac
3182     done
3183 }
3184
3185 icl_flags(){
3186     msvc_common_flags "$@"
3187     for flag; do
3188         case $flag in
3189             # Despite what Intel's documentation says -Wall, which is supported
3190             # on Windows, does enable remarks so disable them here.
3191             -Wall)                echo $flag -Qdiag-disable:remark ;;
3192             -std=c99)             echo -Qstd=c99 ;;
3193             -flto)                echo -ipo ;;
3194         esac
3195     done
3196 }
3197
3198 icc_flags(){
3199     for flag; do
3200         case $flag in
3201             -flto)                echo -ipo ;;
3202             *)                    echo $flag ;;
3203         esac
3204     done
3205 }
3206
3207 pgi_flags(){
3208     for flag; do
3209         case $flag in
3210             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3211             -fomit-frame-pointer) echo -Mnoframe ;;
3212             -g)                   echo -gopt ;;
3213             *)                    echo $flag ;;
3214         esac
3215     done
3216 }
3217
3218 suncc_flags(){
3219     for flag; do
3220         case $flag in
3221             -march=*|-mcpu=*)
3222                 case "${flag#*=}" in
3223                     native)                   echo -xtarget=native       ;;
3224                     v9|niagara)               echo -xarch=sparc          ;;
3225                     ultrasparc)               echo -xarch=sparcvis       ;;
3226                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3227                     i586|pentium)             echo -xchip=pentium        ;;
3228                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3229                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3230                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3231                     pentium4*)          echo -xtarget=pentium4           ;;
3232                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3233                     *-sse3)             echo -xarch=sse3                 ;;
3234                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3235                     bonnell)                   echo -xarch=ssse3         ;;
3236                     corei7|nehalem)            echo -xtarget=nehalem     ;;
3237                     westmere)                  echo -xtarget=westmere    ;;
3238                     silvermont)                echo -xarch=sse4_2        ;;
3239                     corei7-avx|sandybridge)    echo -xtarget=sandybridge ;;
3240                     core-avx*|ivybridge|haswell|broadwell)
3241                                                echo -xarch=avx           ;;
3242                     amdfam10|barcelona)        echo -xtarget=barcelona   ;;
3243                     btver1)                    echo -xarch=amdsse4a      ;;
3244                     btver2|bdver*)             echo -xarch=avx           ;;
3245                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3246                     k8|opteron|athlon64|athlon-fx)
3247                                                echo -xarch=sse2a         ;;
3248                     athlon*)                   echo -xarch=pentium_proa  ;;
3249                 esac
3250                 ;;
3251             -std=c99)             echo -xc99              ;;
3252             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3253             -fPIC)                echo -KPIC -xcode=pic32 ;;
3254             -W*,*)                echo $flag              ;;
3255             -f*-*|-W*|-mimpure-text)                      ;;
3256             -shared)              echo -G                 ;;
3257             *)                    echo $flag              ;;
3258         esac
3259     done
3260 }
3261
3262 tms470_flags(){
3263     for flag; do
3264         case $flag in
3265             -march=*|-mcpu=*)
3266                 case "${flag#*=}" in
3267                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3268                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3269                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3270                     armv6*|arm11*)          echo -mv=6   ;;
3271                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3272                                             echo -mv=5e  ;;
3273                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3274                 esac
3275                 ;;
3276             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3277             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3278             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3279             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3280             -msoft-float)   echo --float_support=vfplib       ;;
3281             -O[0-3]|-mf=*)  echo $flag                        ;;
3282             -g)             echo -g -mn                       ;;
3283             -pds=*)         echo $flag                        ;;
3284             -D*|-I*)        echo $flag                        ;;
3285             --gcc|--abi=*)  echo $flag                        ;;
3286             -me)            echo $flag                        ;;
3287         esac
3288     done
3289 }
3290
3291 probe_cc(){
3292     pfx=$1
3293     _cc=$2
3294
3295     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3296     unset _ld_o _ldflags _ld_lib _ld_path
3297     unset _depflags _DEPCMD _DEPFLAGS
3298     _flags_filter=echo
3299
3300     if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
3301         true # no-op to avoid reading stdin in following checks
3302     elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3303         _type=llvm_gcc
3304         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
3305         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
3306         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3307         _cflags_speed='-O3'
3308         _cflags_size='-Os'
3309     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3310         _type=gcc
3311         gcc_version=$($_cc --version | head -n1)
3312         gcc_basever=$($_cc -dumpversion)
3313         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3314         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3315         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3316         if ! $_cc -dumpversion | grep -q '^2\.'; then
3317             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3318         fi
3319         _cflags_speed='-O3'
3320         _cflags_size='-Os'
3321     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3322         _type=icc
3323         _ident=$($_cc --version | head -n1)
3324         _depflags='-MMD'
3325         _cflags_speed='-O3'
3326         _cflags_size='-Os'
3327         _cflags_noopt='-O1'
3328         _flags_filter=icc_flags
3329     elif $_cc -v 2>&1 | grep -q xlc; then
3330         _type=xlc
3331         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3332         _cflags_speed='-O5'
3333         _cflags_size='-O5 -qcompact'
3334     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3335         _type=ccc
3336         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3337         _DEPFLAGS='-M'
3338         _cflags_speed='-fast'
3339         _cflags_size='-O1'
3340         _flags_filter=ccc_flags
3341     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3342         test -d "$sysroot" || die "No valid sysroot specified."
3343         _type=armcc
3344         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3345         armcc_conf="$PWD/armcc.conf"
3346         $_cc --arm_linux_configure                 \
3347              --arm_linux_config_file="$armcc_conf" \
3348              --configure_sysroot="$sysroot"        \
3349              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3350              die "Error creating armcc configuration file."
3351         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3352         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3353         as_default="${cross_prefix}gcc"
3354         _depflags='-MMD'
3355         _cflags_speed='-O3'
3356         _cflags_size='-Os'
3357     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3358         _type=tms470
3359         _ident=$($_cc -version | head -n1 | tr -s ' ')
3360         _flags='--gcc --abi=eabi -me'
3361         _cc_e='-ppl -fe=$@'
3362         _cc_o='-fe=$@'
3363         _depflags='-ppa -ppd=$(@:.o=.d)'
3364         _cflags_speed='-O3 -mf=5'
3365         _cflags_size='-O3 -mf=2'
3366         _flags_filter=tms470_flags
3367     elif $_cc -v 2>&1 | grep -q clang; then
3368         _type=clang
3369         _ident=$($_cc --version | head -n1)
3370         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3371         _cflags_speed='-O3'
3372         _cflags_size='-Os'
3373     elif $_cc -V 2>&1 | grep -q Sun; then
3374         _type=suncc
3375         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3376         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3377         _DEPFLAGS='-xM1 -xc99'
3378         _ldflags='-std=c99'
3379         _cflags_speed='-O5'
3380         _cflags_size='-O5 -xspace'
3381         _flags_filter=suncc_flags
3382     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3383         _type=pathscale
3384         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3385         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3386         _cflags_speed='-O2'
3387         _cflags_size='-Os'
3388         _flags_filter='filter_out -Wdisabled-optimization'
3389     elif $_cc -v 2>&1 | grep -q Open64; then
3390         _type=open64
3391         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3392         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3393         _cflags_speed='-O2'
3394         _cflags_size='-Os'
3395         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3396     elif $_cc -V 2>&1 | grep -q Portland; then
3397         _type=pgi
3398         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3399         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3400         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3401         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3402         _cflags_noopt="-O"
3403         _flags_filter=pgi_flags
3404     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3405         _type=armasm
3406         _ident=$($_cc | head -n1)
3407         # 4509: "This form of conditional instruction is deprecated"
3408         _flags="-nologo -ignore 4509"
3409         _flags_filter=armasm_flags
3410     elif $_cc 2>&1 | grep -q Microsoft; then
3411         _type=msvc
3412         _ident=$($cc 2>&1 | head -n1)
3413         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3414         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3415         _cflags_speed="-O2"
3416         _cflags_size="-O1"
3417         if $_cc 2>&1 | grep -q Linker; then
3418             _ld_o='-out:$@'
3419         else
3420             _ld_o='-Fe$@'
3421         fi
3422         _cc_o='-Fo$@'
3423         _cc_e='-P -Fi$@'
3424         _flags_filter=msvc_flags
3425         _ld_lib='lib%.a'
3426         _ld_path='-libpath:'
3427         _flags='-nologo'
3428         _cflags='-D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
3429         if [ $pfx = hostcc ]; then
3430             append _cflags -Dsnprintf=_snprintf
3431         fi
3432         disable stripping
3433     elif $_cc 2>&1 | grep -q Intel; then
3434         _type=icl
3435         _ident=$($cc 2>&1 | head -n1)
3436         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3437         # Not only is O3 broken on 13.x+ but it is slower on all previous
3438         # versions (tested) as well.
3439         _cflags_speed="-O2"
3440         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3441         if $_cc 2>&1 | grep -q Linker; then
3442             _ld_o='-out:$@'
3443         else
3444             _ld_o='-Fe$@'
3445         fi
3446         _cc_o='-Fo$@'
3447         _cc_e='-P'
3448         _flags_filter=icl_flags
3449         _ld_lib='lib%.a'
3450         _ld_path='-libpath:'
3451         # -Qdiag-error to make icl error when seeing certain unknown arguments
3452         _flags='-nologo -Qdiag-error:4044,10157'
3453         # -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
3454         # with MSVC which enables it by default.
3455         _cflags='-D_USE_MATH_DEFINES -FIstdlib.h -Dstrtoll=_strtoi64 -Qms0 -Qvec- -Qsimd- -GS -fp:precise'
3456         if [ $pfx = hostcc ]; then
3457             append _cflags -Dsnprintf=_snprintf
3458         fi
3459     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3460         _type=cparser
3461         _ident=$($_cc --version | head -n1)
3462         _depflags='-MMD'
3463         _cflags_speed='-O4'
3464         _cflags_size='-O2'
3465         _flags_filter=cparser_flags
3466     fi
3467
3468     eval ${pfx}_type=\$_type
3469     eval ${pfx}_ident=\$_ident
3470 }
3471
3472 set_ccvars(){
3473     eval ${1}_C=\${_cc_c-\${${1}_C}}
3474     eval ${1}_E=\${_cc_e-\${${1}_E}}
3475     eval ${1}_O=\${_cc_o-\${${1}_O}}
3476
3477     if [ -n "$_depflags" ]; then
3478         eval ${1}_DEPFLAGS=\$_depflags
3479     else
3480         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3481         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3482         eval DEP${1}FLAGS=\$_flags
3483     fi
3484 }
3485
3486 probe_cc cc "$cc"
3487 cflags_filter=$_flags_filter
3488 cflags_speed=$_cflags_speed
3489 cflags_size=$_cflags_size
3490 cflags_noopt=$_cflags_noopt
3491 add_cflags $_flags $_cflags
3492 cc_ldflags=$_ldflags
3493 set_ccvars CC
3494
3495 probe_cc hostcc "$host_cc"
3496 host_cflags_filter=$_flags_filter
3497 add_host_cflags  $_flags $_cflags
3498 set_ccvars HOSTCC
3499
3500 test -n "$cc_type" && enable $cc_type ||
3501     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3502
3503 : ${as_default:=$cc}
3504 : ${dep_cc_default:=$cc}
3505 : ${ld_default:=$cc}
3506 : ${host_ld_default:=$host_cc}
3507 set_default ar as dep_cc ld host_ld windres
3508
3509 probe_cc as "$as"
3510 asflags_filter=$_flags_filter
3511 add_asflags $_flags $_cflags
3512 set_ccvars AS
3513
3514 probe_cc ld "$ld"
3515 ldflags_filter=$_flags_filter
3516 add_ldflags $_flags $_ldflags
3517 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3518 LD_O=${_ld_o-$LD_O}
3519 LD_LIB=${_ld_lib-$LD_LIB}
3520 LD_PATH=${_ld_path-$LD_PATH}
3521
3522 probe_cc hostld "$host_ld"
3523 host_ldflags_filter=$_flags_filter
3524 add_host_ldflags $_flags $_ldflags
3525 HOSTLD_O=${_ld_o-$HOSTLD_O}
3526
3527 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3528     probe_cc depcc "$dep_cc"
3529     CCDEP=${_DEPCMD:-$DEPCMD}
3530     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3531     DEPCCFLAGS=$_flags
3532 fi
3533
3534 if $ar 2>&1 | grep -q Microsoft; then
3535     arflags="-nologo"
3536     ar_o='-out:$@'
3537 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3538     arflags="rq"
3539     ar_o='$@'
3540 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3541     arflags='-Xany -r -c'
3542     ar_o='$@'
3543 else
3544     arflags="rc"
3545     ar_o='$@'
3546 fi
3547
3548 add_cflags $extra_cflags
3549 add_cxxflags $extra_cxxflags
3550 add_asflags $extra_cflags
3551
3552 if test -n "$sysroot"; then
3553     case "$cc_type" in
3554         gcc|llvm_gcc|clang)
3555             add_cppflags --sysroot="$sysroot"
3556             add_ldflags --sysroot="$sysroot"
3557 # On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
3558             add_cppflags -isysroot "$sysroot"
3559             add_ldflags -isysroot "$sysroot"
3560         ;;
3561         tms470)
3562             add_cppflags -I"$sysinclude"
3563             add_ldflags  --sysroot="$sysroot"
3564         ;;
3565     esac
3566 fi
3567
3568 if test "$cpu" = host; then
3569     enabled cross_compile &&
3570         die "--cpu=host makes no sense when cross-compiling."
3571
3572     case "$cc_type" in
3573         gcc|llvm_gcc)
3574             check_native(){
3575                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3576                 sed -n "/cc1.*$1=/{
3577                             s/.*$1=\\([^ ]*\\).*/\\1/
3578                             p
3579                             q
3580                         }" $TMPE
3581             }
3582             cpu=$(check_native -march || check_native -mcpu)
3583         ;;
3584     esac
3585
3586     test "${cpu:-host}" = host &&
3587         die "--cpu=host not supported with compiler $cc"
3588 fi
3589
3590 # Deal with common $arch aliases
3591 case "$arch" in
3592     aarch64|arm64)
3593         arch="aarch64"
3594     ;;
3595     arm*|iPad*|iPhone*)
3596         arch="arm"
3597     ;;
3598     mips*|IP*)
3599         arch="mips"
3600     ;;
3601     parisc*|hppa*)
3602         arch="parisc"
3603     ;;
3604     "Power Macintosh"|ppc*|powerpc*)
3605         arch="ppc"
3606     ;;
3607     s390|s390x)
3608         arch="s390"
3609     ;;
3610     sh4|sh)
3611         arch="sh4"
3612     ;;
3613     sun4u|sparc*)
3614         arch="sparc"
3615     ;;
3616     tilegx|tile-gx)
3617         arch="tilegx"
3618     ;;
3619     i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
3620         arch="x86"
3621     ;;
3622 esac
3623
3624 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3625 enable $arch
3626
3627 # Add processor-specific flags
3628 if enabled aarch64; then
3629
3630     case $cpu in
3631         armv*)
3632             cpuflags="-march=$cpu"
3633         ;;
3634         *)
3635             cpuflags="-mcpu=$cpu"
3636         ;;
3637     esac
3638
3639 elif enabled alpha; then
3640
3641     cpuflags="-mcpu=$cpu"
3642
3643 elif enabled arm; then
3644
3645     check_arm_arch() {
3646         check_cpp_condition stddef.h \
3647             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3648             $cpuflags
3649     }
3650
3651     probe_arm_arch() {
3652         if   check_arm_arch 4;        then echo armv4;
3653         elif check_arm_arch 4T;       then echo armv4t;
3654         elif check_arm_arch 5;        then echo armv5;
3655         elif check_arm_arch 5E;       then echo armv5e;
3656         elif check_arm_arch 5T;       then echo armv5t;
3657         elif check_arm_arch 5TE;      then echo armv5te;
3658         elif check_arm_arch 5TEJ;     then echo armv5te;
3659         elif check_arm_arch 6;        then echo armv6;
3660         elif check_arm_arch 6J;       then echo armv6j;
3661         elif check_arm_arch 6K;       then echo armv6k;
3662         elif check_arm_arch 6Z;       then echo armv6z;
3663         elif check_arm_arch 6ZK;      then echo armv6zk;
3664         elif check_arm_arch 6T2;      then echo armv6t2;
3665         elif check_arm_arch 7;        then echo armv7;
3666         elif check_arm_arch 7A  7_A;  then echo armv7-a;
3667         elif check_arm_arch 7R  7_R;  then echo armv7-r;
3668         elif check_arm_arch 7M  7_M;  then echo armv7-m;
3669         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
3670         elif check_arm_arch 8A  8_A;  then echo armv8-a;
3671         fi
3672     }
3673
3674     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3675
3676     case $cpu in
3677         armv*)
3678             cpuflags="-march=$cpu"
3679             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3680         ;;
3681         *)
3682             cpuflags="-mcpu=$cpu"
3683             case $cpu in
3684                 cortex-a*)                               subarch=armv7a  ;;
3685                 cortex-r*)                               subarch=armv7r  ;;
3686                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3687                 arm11*)                                  subarch=armv6   ;;
3688                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3689                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3690                 *)                             subarch=$(probe_arm_arch) ;;
3691             esac
3692         ;;
3693     esac
3694
3695     case "$subarch" in
3696         armv5t*)    enable fast_clz                ;;
3697         armv[6-8]*)
3698             enable fast_clz
3699             disabled fast_unaligned || enable fast_unaligned
3700             ;;
3701     esac
3702
3703 elif enabled avr32; then
3704
3705     case $cpu in
3706         ap7[02]0[0-2])
3707             subarch="avr32_ap"
3708             cpuflags="-mpart=$cpu"
3709         ;;
3710         ap)
3711             subarch="avr32_ap"
3712             cpuflags="-march=$cpu"
3713         ;;
3714         uc3[ab]*)
3715             subarch="avr32_uc"
3716             cpuflags="-mcpu=$cpu"
3717         ;;
3718         uc)
3719             subarch="avr32_uc"
3720             cpuflags="-march=$cpu"
3721         ;;
3722     esac
3723
3724 elif enabled bfin; then
3725
3726     cpuflags="-mcpu=$cpu"
3727
3728 elif enabled mips; then
3729
3730     cpuflags="-march=$cpu"
3731
3732     case $cpu in
3733         24kc)
3734             disable mipsfpu
3735             disable mipsdspr1
3736             disable mipsdspr2
3737         ;;
3738         24kf*)
3739             disable mipsdspr1
3740             disable mipsdspr2
3741         ;;
3742         24kec|34kc|1004kc)
3743             disable mipsfpu
3744             disable mipsdspr2
3745         ;;
3746         24kef*|34kf*|1004kf*)
3747             disable mipsdspr2
3748         ;;
3749         74kc)
3750             disable mipsfpu
3751         ;;
3752     esac
3753
3754 elif enabled ppc; then
3755
3756     disable ldbrx
3757     disable vsx
3758
3759     case $(tolower $cpu) in
3760         601|ppc601|powerpc601)
3761             cpuflags="-mcpu=601"
3762             disable altivec
3763         ;;
3764         603*|ppc603*|powerpc603*)
3765             cpuflags="-mcpu=603"
3766             disable altivec
3767         ;;
3768         604*|ppc604*|powerpc604*)
3769             cpuflags="-mcpu=604"
3770             disable altivec
3771         ;;
3772         g3|75*|ppc75*|powerpc75*)
3773             cpuflags="-mcpu=750"
3774             disable altivec
3775         ;;
3776         g4|745*|ppc745*|powerpc745*)
3777             cpuflags="-mcpu=7450"
3778         ;;
3779         74*|ppc74*|powerpc74*)
3780             cpuflags="-mcpu=7400"
3781         ;;
3782         g5|970|ppc970|powerpc970)
3783             cpuflags="-mcpu=970"
3784         ;;
3785         power[3-8]*)
3786             cpuflags="-mcpu=$cpu"
3787         ;;
3788         cell)
3789             cpuflags="-mcpu=cell"
3790             enable ldbrx
3791         ;;
3792         e500mc)
3793             cpuflags="-mcpu=e500mc"
3794             disable altivec
3795         ;;
3796         e500v2)
3797             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3798             disable altivec
3799             disable dcbzl
3800         ;;
3801         e500)
3802             cpuflags="-mcpu=8540 -mhard-float"
3803             disable altivec
3804             disable dcbzl
3805         ;;
3806     esac
3807
3808 elif enabled sparc; then
3809
3810     case $cpu in
3811         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3812             cpuflags="-mcpu=$cpu"
3813         ;;
3814         ultrasparc*|niagara[234])
3815             cpuflags="-mcpu=$cpu"
3816         ;;
3817     esac
3818
3819 elif enabled x86; then
3820
3821     case $cpu in
3822         i[345]86|pentium)
3823             cpuflags="-march=$cpu"
3824             disable mmx
3825         ;;
3826         # targets that do NOT support nopl and conditional mov (cmov)
3827         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3828             cpuflags="-march=$cpu"
3829             disable i686
3830         ;;
3831         # targets that do support nopl and conditional mov (cmov)
3832         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
3833         |core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|amdfam10|barcelona|b[dt]ver*)
3834             cpuflags="-march=$cpu"
3835             enable i686
3836             enable fast_cmov
3837         ;;
3838         # targets that do support conditional mov but on which it's slow
3839         pentium4|pentium4m|prescott|nocona)
3840             cpuflags="-march=$cpu"
3841             enable i686
3842             disable fast_cmov
3843         ;;
3844     esac
3845
3846 fi
3847
3848 if [ "$cpu" != generic ]; then
3849     add_cflags  $cpuflags
3850     add_asflags $cpuflags
3851 fi
3852
3853 # compiler sanity check
3854 check_exec <<EOF
3855 int main(void){ return 0; }
3856 EOF
3857 if test "$?" != 0; then
3858     echo "$cc is unable to create an executable file."
3859     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3860         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3861         echo "Only do this if you know what cross compiling means."
3862     fi
3863     die "C compiler test failed."
3864 fi
3865
3866 add_cppflags -D_ISOC99_SOURCE
3867 add_cxxflags -D__STDC_CONSTANT_MACROS
3868 check_cflags -std=c99
3869 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
3870 #include <stdlib.h>
3871 EOF
3872 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
3873 #include <stdlib.h>
3874 EOF
3875
3876 add_host_cppflags -D_ISOC99_SOURCE
3877 check_host_cflags -std=c99
3878 check_host_cflags -Wall
3879 check_host_cflags -O3
3880
3881 check_64bit(){
3882     arch32=$1
3883     arch64=$2
3884     expr=$3
3885     check_code cc "" "int test[2*($expr) - 1]" &&
3886         subarch=$arch64 || subarch=$arch32
3887 }
3888
3889 case "$arch" in
3890     aarch64|alpha|ia64)
3891         spic=$shared
3892     ;;
3893     mips)
3894         check_64bit mips mips64 '_MIPS_SIM > 1'
3895         spic=$shared
3896     ;;
3897     parisc)
3898         check_64bit parisc parisc64 'sizeof(void *) > 4'
3899         spic=$shared
3900     ;;
3901     ppc)
3902         check_64bit ppc ppc64 'sizeof(void *) > 4'
3903         spic=$shared
3904     ;;
3905     s390)
3906         check_64bit s390 s390x 'sizeof(void *) > 4'
3907         spic=$shared
3908     ;;
3909     sparc)
3910         check_64bit sparc sparc64 'sizeof(void *) > 4'
3911         spic=$shared
3912     ;;
3913     x86)
3914         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3915         if test "$subarch" = "x86_64"; then
3916             spic=$shared
3917         fi
3918     ;;
3919     ppc)
3920         check_cc <<EOF && subarch="ppc64"
3921         int test[(int)sizeof(char*) - 7];
3922 EOF
3923     ;;
3924 esac
3925
3926 enable $subarch
3927 enabled spic && enable_weak pic
3928
3929 # OS specific
3930 case $target_os in
3931     aix)
3932         SHFLAGS=-shared
3933         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3934         enabled shared && add_ldflags -Wl,-brtl
3935         ;;
3936     android)
3937         disable symver
3938         SLIB_INSTALL_NAME='$(SLIBNAME)'
3939         SLIB_INSTALL_LINKS=
3940         # soname not set on purpose
3941         SHFLAGS=-shared
3942         ;;
3943     haiku)
3944         prefix_default="/boot/common"
3945         network_extralibs="-lnetwork"
3946         host_libs=
3947         ;;
3948     sunos)
3949         SHFLAGS='-shared -Wl,-h,$$(@F)'
3950         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3951         network_extralibs="-lsocket -lnsl"
3952         # When using suncc to build, the Solaris linker will mark
3953         # an executable with each instruction set encountered by
3954         # the Solaris assembler.  As our libraries contain their own
3955         # guards for processor-specific code, instead suppress
3956         # generation of the HWCAPS ELF section on Solaris x86 only.
3957         enabled_all suncc x86 &&
3958             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3959             add_ldflags -Wl,-M,mapfile
3960         nm_default='nm -P -g'
3961         ;;
3962     netbsd)
3963         disable symver
3964         oss_indev_extralibs="-lossaudio"
3965         oss_outdev_extralibs="-lossaudio"
3966         enabled gcc || check_ldflags -Wl,-zmuldefs
3967         ;;
3968     openbsd|bitrig)
3969         disable symver
3970         SHFLAGS='-shared'
3971         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3972         SLIB_INSTALL_LINKS=
3973         oss_indev_extralibs="-lossaudio"
3974         oss_outdev_extralibs="-lossaudio"
3975         ;;
3976     dragonfly)
3977         disable symver
3978         ;;
3979     freebsd)
3980         ;;
3981     bsd/os)
3982         add_extralibs -lpoll -lgnugetopt
3983         strip="strip -d"
3984         ;;
3985     darwin)
3986         enabled ppc && add_asflags -force_cpusubtype_ALL
3987         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3988         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3989         strip="${strip} -x"
3990         add_ldflags -Wl,-dynamic,-search_paths_first
3991         SLIBSUF=".dylib"
3992         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
3993         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
3994         objformat="macho"
3995         enabled x86_64 && objformat="macho64"
3996         enabled_any pic shared ||
3997             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3998         ;;
3999     mingw32*)
4000         if test $target_os = "mingw32ce"; then
4001             disable network
4002         else
4003             target_os=mingw32
4004         fi
4005         LIBTARGET=i386
4006         if enabled x86_64; then
4007             LIBTARGET="i386:x86-64"
4008         elif enabled arm; then
4009             LIBTARGET=arm-wince
4010         fi
4011         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4012         check_ldflags -Wl,--nxcompat
4013         check_ldflags -Wl,--dynamicbase
4014         shlibdir_default="$bindir_default"
4015         SLIBPREF=""
4016         SLIBSUF=".dll"
4017         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4018         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4019         dlltool="${cross_prefix}dlltool"
4020         if check_cmd lib.exe -list; then
4021             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4022             if enabled x86_64; then
4023                 LIBTARGET=x64
4024             fi
4025         elif check_cmd $dlltool --version; then
4026             SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4027         fi
4028         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4029         SLIB_INSTALL_LINKS=
4030         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4031         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4032         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4033         objformat="win32"
4034         ranlib=:
4035         enable dos_paths
4036         ;;
4037     win32|win64)
4038         disable symver
4039         if enabled shared; then
4040             # Link to the import library instead of the normal static library
4041             # for shared libs.
4042             LD_LIB='%.lib'
4043             # Cannot build both shared and static libs with MSVC or icl.
4044             disable static
4045         fi
4046         shlibdir_default="$bindir_default"
4047         SLIBPREF=""
4048         SLIBSUF=".dll"
4049         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4050         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4051         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4052         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4053         SLIB_INSTALL_LINKS=
4054         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4055         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4056         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4057         objformat="win32"
4058         ranlib=:
4059         enable dos_paths
4060         ;;
4061     cygwin*)
4062         target_os=cygwin
4063         shlibdir_default="$bindir_default"
4064         SLIBPREF="cyg"
4065         SLIBSUF=".dll"
4066         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
4067         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
4068         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4069         SLIB_INSTALL_LINKS=
4070         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
4071         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
4072         objformat="win32"
4073         enable dos_paths
4074         enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
4075         ;;
4076     *-dos|freedos|opendos)
4077         network_extralibs="-lsocket"
4078         objformat="coff"
4079         enable dos_paths
4080         add_cppflags -U__STRICT_ANSI__
4081         ;;
4082     linux)
4083         enable dv1394
4084         ;;
4085     irix*)
4086         target_os=irix
4087         ranlib="echo ignoring ranlib"
4088         ;;
4089     os/2*)
4090         strip="lxlite -CS"
4091         ln_s="cp -f"
4092         objformat="aout"
4093         add_cppflags -D_GNU_SOURCE
4094         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
4095         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4096         LIBSUF="_s.a"
4097         SLIBPREF=""
4098         SLIBSUF=".dll"
4099         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4100         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4101         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4102             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
4103             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4104             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4105             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4106             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
4107         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4108             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4109         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4110         enable dos_paths
4111         enable_weak os2threads
4112         ;;
4113     gnu/kfreebsd)
4114         add_cppflags -D_BSD_SOURCE
4115         ;;
4116     gnu)
4117         ;;
4118     qnx)
4119         add_cppflags -D_QNX_SOURCE
4120         network_extralibs="-lsocket"
4121         ;;
4122     symbian)
4123         SLIBSUF=".dll"
4124         enable dos_paths
4125         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4126         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4127         add_ldflags -Wl,--target1-abs,--no-undefined \
4128                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4129                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4130         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4131                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4132                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4133         ;;
4134     osf1)
4135         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4136         ;;
4137     minix)
4138         ;;
4139     plan9)
4140         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
4141                      -D_REENTRANT_SOURCE        \
4142                      -D_RESEARCH_SOURCE         \
4143                      -DFD_SETSIZE=96            \
4144                      -DHAVE_SOCK_OPTS
4145         add_compat strtod.o strtod=avpriv_strtod
4146         network_extralibs='-lbsd'
4147         exeobjs=compat/plan9/main.o
4148         disable ffserver
4149         cp_f='cp'
4150         ;;
4151     none)
4152         ;;
4153     *)
4154         die "Unknown OS '$target_os'."
4155         ;;
4156 esac
4157
4158 # determine libc flavour
4159
4160 probe_libc(){
4161     pfx=$1
4162     pfx_no_=${pfx%_}
4163     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4164     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4165         eval ${pfx}libc_type=uclibc
4166         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4167     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4168         eval ${pfx}libc_type=glibc
4169         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4170     # MinGW headers can be installed on Cygwin, so check for newlib first.
4171     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4172         eval ${pfx}libc_type=newlib
4173         add_${pfx}cppflags -U__STRICT_ANSI__
4174     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4175     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4176         eval ${pfx}libc_type=mingw64
4177         if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
4178             add_compat msvcrt/snprintf.o
4179             add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
4180         fi
4181         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4182         eval test \$${pfx_no_}cc_type = "gcc" &&
4183             add_${pfx}cppflags -D__printf__=__gnu_printf__
4184     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4185          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4186         eval ${pfx}libc_type=mingw32
4187         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4188             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4189             die "ERROR: MinGW32 runtime version must be >= 3.15."
4190         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4191         eval test \$${pfx_no_}cc_type = "gcc" &&
4192             add_${pfx}cppflags -D__printf__=__gnu_printf__
4193     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4194         eval ${pfx}libc_type=msvcrt
4195         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4196         # 0x601 by default unless something else is set by the user.
4197         # This can easily lead to us detecting functions only present
4198         # in such new versions and producing binaries requiring windows 7.0.
4199         # Therefore explicitly set the default to XP unless the user has
4200         # set something else on the command line.
4201         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4202             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4203     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4204         eval ${pfx}libc_type=klibc
4205     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4206         eval ${pfx}libc_type=bionic
4207     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4208         eval ${pfx}libc_type=solaris
4209         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4210     fi
4211 }
4212
4213 probe_libc
4214 test -n "$libc_type" && enable libc_$libc_type
4215 probe_libc host_
4216 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4217
4218 case $libc_type in
4219     bionic)
4220         add_compat strtod.o strtod=avpriv_strtod
4221         ;;
4222     msvcrt)
4223         add_compat strtod.o strtod=avpriv_strtod
4224         add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4225                                      _snprintf=avpriv_snprintf  \
4226                                      vsnprintf=avpriv_vsnprintf
4227         ;;
4228 esac
4229
4230 # hacks for compiler/libc/os combinations
4231
4232 if enabled_all tms470 libc_glibc; then
4233     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4234     add_cppflags -D__USER_LABEL_PREFIX__=
4235     add_cppflags -D__builtin_memset=memset
4236     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4237     add_cflags   -pds=48    # incompatible redefinition of macro
4238 fi
4239
4240 if enabled_all ccc libc_glibc; then
4241     add_ldflags -Wl,-z,now  # calls to libots crash without this
4242 fi
4243
4244 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4245     add_cppflags '-I\$(SRC_PATH)/compat/float'
4246
4247 esc(){
4248     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4249 }
4250
4251 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
4252
4253 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4254
4255 set_default $PATHS_LIST
4256 set_default nm
4257
4258 # we need to build at least one lib type
4259 if ! enabled_any static shared; then
4260     cat <<EOF
4261 At least one library type must be built.
4262 Specify --enable-static to build the static libraries or --enable-shared to
4263 build the shared libraries as well. To only build the shared libraries specify
4264 --disable-static in addition to --enable-shared.
4265 EOF
4266     exit 1;
4267 fi
4268
4269 die_license_disabled() {
4270     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
4271 }
4272
4273 die_license_disabled_gpl() {
4274     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
4275 }
4276
4277 die_license_disabled gpl frei0r
4278 die_license_disabled gpl libcdio
4279 die_license_disabled gpl libsmbclient
4280 die_license_disabled gpl libutvideo
4281 die_license_disabled gpl libvidstab
4282 die_license_disabled gpl libx264
4283 die_license_disabled gpl libx265
4284 die_license_disabled gpl libxavs
4285 die_license_disabled gpl libxvid
4286 die_license_disabled gpl libzvbi
4287 die_license_disabled gpl x11grab
4288
4289 die_license_disabled nonfree libaacplus
4290 die_license_disabled nonfree libfaac
4291 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
4292 enabled gpl && die_license_disabled_gpl nonfree openssl
4293
4294 die_license_disabled version3 libopencore_amrnb
4295 die_license_disabled version3 libopencore_amrwb
4296 die_license_disabled version3 libsmbclient
4297 die_license_disabled version3 libvo_aacenc
4298 die_license_disabled version3 libvo_amrwbenc
4299
4300 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
4301
4302 disabled optimizations || check_cflags -fomit-frame-pointer
4303
4304 enable_weak_pic() {
4305     disabled pic && return
4306     enable pic
4307     add_cppflags -DPIC
4308     case "$target_os" in
4309     mingw*|cygwin*)
4310         ;;
4311     *)
4312         add_cflags -fPIC
4313         ;;
4314     esac
4315     add_asflags  -fPIC
4316 }
4317
4318 enabled pic && enable_weak_pic
4319
4320 check_cc <<EOF || die "Symbol mangling check failed."
4321 int ff_extern;
4322 EOF
4323 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4324 extern_prefix=${sym%%ff_extern*}
4325
4326 check_cc <<EOF && enable_weak inline_asm
4327 void foo(void) { __asm__ volatile ("" ::); }
4328 EOF
4329
4330 _restrict=
4331 for restrict_keyword in restrict __restrict__ __restrict; do
4332     check_cc <<EOF && _restrict=$restrict_keyword && break
4333 void foo(char * $restrict_keyword p);
4334 EOF
4335 done
4336
4337 check_cc <<EOF && enable pragma_deprecated
4338 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4339 EOF
4340
4341 check_cc <<EOF && enable attribute_packed
4342 struct { int x; } __attribute__((packed)) x;
4343 EOF
4344
4345 check_cc <<EOF && enable attribute_may_alias
4346 union { int x; } __attribute__((may_alias)) x;
4347 EOF
4348
4349 check_cc <<EOF || die "endian test failed"
4350 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4351 EOF
4352 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4353
4354 if  [ "$cpu" = "power7" ] || [ "$cpu" = "power8" ] ;then
4355     if ! enabled bigendian ;then
4356         enable vsx
4357     fi
4358 fi
4359
4360 check_gas() {
4361     log "check_gas using '$as' as AS"
4362     # :vararg is used on aarch64, arm and ppc altivec
4363     check_as <<EOF || return 1
4364 .macro m n, y:vararg=0
4365 \n: .int \y
4366 .endm
4367 m x
4368 EOF
4369     # .altmacro is only used in arm asm
4370     ! enabled arm || check_as <<EOF || return 1
4371 .altmacro
4372 EOF
4373     enable gnu_as
4374     return 0
4375 }
4376
4377 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4378     nogas=:
4379     enabled_any arm aarch64 && nogas=die
4380     enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
4381     as_noop=-v
4382
4383     case $as_type in
4384         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4385         gcc)  gaspp_as_type=gas ;;
4386         *)    gaspp_as_type=$as_type ;;
4387     esac
4388
4389     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4390
4391     test "${as#*gas-preprocessor.pl}" != "$as" ||
4392     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
4393         gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
4394
4395     if ! check_gas ; then
4396         as=${gas:=$as}
4397         check_gas || \
4398             $nogas "GNU assembler not found, install/update gas-preprocessor"
4399     fi
4400
4401     check_as <<EOF && enable as_func
4402 .func test
4403 .endfunc
4404 EOF
4405 fi
4406
4407 check_inline_asm inline_asm_labels '"1:\n"'
4408
4409 check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
4410
4411 if enabled aarch64; then
4412     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4413     # internal assembler in clang 3.3 does not support this instruction
4414     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4415     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4416
4417     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4418
4419 elif enabled alpha; then
4420
4421     check_cflags -mieee
4422
4423 elif enabled arm; then
4424
4425     check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
4426 float func(float a, float b){ return a+b; }
4427 EOF
4428
4429     enabled thumb && check_cflags -mthumb || check_cflags -marm
4430
4431     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4432         enable vfp_args
4433     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
4434         case "${cross_prefix:-$cc}" in
4435             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4436             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4437 __asm__ (".eabi_attribute 28, 1");
4438 int main(void) { return 0; }
4439 EOF
4440         esac
4441         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4442     fi
4443
4444     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4445     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4446     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4447     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4448     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4449     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4450
4451     [ $target_os = linux ] || [ $target_os = android ] ||
4452         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4453             $ARCH_EXT_LIST_ARM
4454
4455     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4456
4457     check_as <<EOF && enable as_dn_directive
4458 ra .dn d0.i16
4459 .unreq ra
4460 EOF
4461
4462     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4463
4464 elif enabled mips; then
4465
4466     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4467     enabled mips32r2  && add_cflags "-mips32r2" && add_asflags "-mips32r2" &&
4468      check_inline_asm mips32r2  '"rotr $t0, $t1, 1"'
4469     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
4470      check_inline_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
4471     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
4472      check_inline_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
4473     enabled mipsfpu   && add_cflags "-mhard-float" && add_asflags "-mhard-float" &&
4474      check_inline_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
4475
4476 elif enabled parisc; then
4477
4478     if enabled gcc; then
4479         case $($cc -dumpversion) in
4480             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4481         esac
4482     fi
4483
4484 elif enabled ppc; then
4485
4486     enable local_aligned_8 local_aligned_16 local_aligned_32
4487
4488     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4489     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4490     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4491     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4492
4493     # AltiVec flags: The FSF version of GCC differs from the Apple version
4494     if enabled altivec; then
4495         check_cflags -maltivec -mabi=altivec &&
4496         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
4497         check_cflags -faltivec
4498
4499         # check if our compiler supports Motorola AltiVec C API
4500         check_cc <<EOF || disable altivec
4501 $inc_altivec_h
4502 int main(void) {
4503     vector signed int v1 = (vector signed int) { 0 };
4504     vector signed int v2 = (vector signed int) { 1 };
4505     v1 = vec_add(v1, v2);
4506     return 0;
4507 }
4508 EOF
4509
4510         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4511     fi
4512
4513     if enabled vsx; then
4514         check_cflags -mvsx
4515     fi
4516 elif enabled x86; then
4517
4518     check_builtin rdtsc    intrin.h   "__rdtsc()"
4519     check_builtin mm_empty mmintrin.h "_mm_empty()"
4520
4521     enable local_aligned_8 local_aligned_16 local_aligned_32
4522
4523     # check whether EBP is available on x86
4524     # As 'i' is stored on the stack, this program will crash
4525     # if the base pointer is used to access it because the
4526     # base pointer is cleared in the inline assembly code.
4527     check_exec_crash <<EOF && enable ebp_available
4528 volatile int i=0;
4529 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4530 return i;
4531 EOF
4532
4533     # check whether EBX is available on x86
4534     check_inline_asm ebx_available '""::"b"(0)' &&
4535         check_inline_asm ebx_available '"":::"%ebx"'
4536
4537     # check whether xmm clobbers are supported
4538     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4539
4540     check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
4541         check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
4542
4543     # check whether binutils is new enough to compile SSSE3/MMXEXT
4544     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4545     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4546
4547     if ! disabled_any asm mmx yasm; then
4548         if check_cmd $yasmexe --version; then
4549             enabled x86_64 && yasm_extra="-m amd64"
4550             yasm_debug="-g dwarf2"
4551         elif check_cmd nasm -v; then
4552             yasmexe=nasm
4553             yasm_debug="-g -F dwarf"
4554             if enabled x86_64; then
4555                 case "$objformat" in
4556                     elf)   objformat=elf64 ;;
4557                     win32) objformat=win64 ;;
4558                 esac
4559             fi
4560         fi
4561
4562         YASMFLAGS="-f $objformat $yasm_extra"
4563         enabled pic               && append YASMFLAGS "-DPIC"
4564         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
4565         case "$objformat" in
4566             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
4567         esac
4568
4569         check_yasm "movbe ecx, [5]" && enable yasm ||
4570             die "yasm/nasm not found or too old. Use --disable-yasm for a crippled build."
4571         check_yasm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4572         check_yasm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4573         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4574         check_yasm "CPU amdnop" || disable cpunop
4575     fi
4576
4577     case "$cpu" in
4578         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4579             disable fast_clz
4580         ;;
4581     esac
4582
4583 fi
4584
4585 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4586
4587 check_ldflags -Wl,--as-needed
4588
4589 if check_func dlopen; then
4590     ldl=
4591 elif check_func dlopen -ldl; then
4592     ldl=-ldl
4593 fi
4594
4595 if ! disabled network; then
4596     check_func getaddrinfo $network_extralibs
4597     check_func getservbyport $network_extralibs
4598     check_func inet_aton $network_extralibs
4599
4600     check_type netdb.h "struct addrinfo"
4601     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4602     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4603     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4604     check_type poll.h "struct pollfd"
4605     check_type netinet/sctp.h "struct sctp_event_subscribe"
4606     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4607     check_type netinet/in.h "struct sockaddr_in6"
4608     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4609     check_type "sys/types.h sys/socket.h" socklen_t
4610
4611     # Prefer arpa/inet.h over winsock2
4612     if check_header arpa/inet.h ; then
4613         check_func closesocket
4614     elif check_header winsock2.h ; then
4615         check_func_headers winsock2.h closesocket -lws2 &&
4616             network_extralibs="-lws2" ||
4617         { check_func_headers winsock2.h closesocket -lws2_32 &&
4618             network_extralibs="-lws2_32"; } || disable winsock2_h network
4619         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4620
4621         check_type ws2tcpip.h socklen_t
4622         check_type ws2tcpip.h "struct addrinfo"
4623         check_type ws2tcpip.h "struct group_source_req"
4624         check_type ws2tcpip.h "struct ip_mreq_source"
4625         check_type ws2tcpip.h "struct ipv6_mreq"
4626         check_type winsock2.h "struct pollfd"
4627         check_struct winsock2.h "struct sockaddr" sa_len
4628         check_type ws2tcpip.h "struct sockaddr_in6"
4629         check_type ws2tcpip.h "struct sockaddr_storage"
4630     else
4631         disable network
4632     fi
4633 fi
4634
4635 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4636 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4637 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4638 check_builtin sarestart signal.h "SA_RESTART"
4639 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4640
4641 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4642 check_func  ${malloc_prefix}memalign            && enable memalign
4643 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4644
4645 check_func  access
4646 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
4647 check_func  fcntl
4648 check_func  fork
4649 check_func  gethrtime
4650 check_func  getopt
4651 check_func  getrusage
4652 check_func  gettimeofday
4653 check_func  isatty
4654 check_func  localtime_r
4655 check_func  mach_absolute_time
4656 check_func  mkstemp
4657 check_func  mmap
4658 check_func  mprotect
4659 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4660 check_func_headers time.h nanosleep || { check_func_headers time.h nanosleep -lrt && add_extralibs -lrt; }
4661 check_func  sched_getaffinity
4662 check_func  setrlimit
4663 check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
4664 check_func  strerror_r
4665 check_func  sysconf
4666 check_func  sysctl
4667 check_func  usleep
4668
4669 check_func_headers conio.h kbhit
4670 check_func_headers io.h setmode
4671 check_func_headers lzo/lzo1x.h lzo1x_999_compress
4672 check_func_headers stdlib.h getenv
4673
4674 check_func_headers windows.h CoTaskMemFree -lole32
4675 check_func_headers windows.h GetProcessAffinityMask
4676 check_func_headers windows.h GetProcessTimes
4677 check_func_headers windows.h GetSystemTimeAsFileTime
4678 check_func_headers windows.h MapViewOfFile
4679 check_func_headers windows.h PeekNamedPipe
4680 check_func_headers windows.h SetConsoleTextAttribute
4681 check_func_headers windows.h Sleep
4682 check_func_headers windows.h VirtualAlloc
4683 check_func_headers glob.h glob
4684 enabled xlib &&
4685     check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
4686
4687 check_header cl/cl.h
4688 check_header direct.h
4689 check_header dlfcn.h
4690 check_header dxva.h
4691 check_header dxva2api.h -D_WIN32_WINNT=0x0600
4692 check_header io.h
4693 check_header libcrystalhd/libcrystalhd_if.h
4694 check_header mach/mach_time.h
4695 check_header malloc.h
4696 check_header poll.h
4697 check_header sys/mman.h
4698 check_header sys/param.h
4699 check_header sys/resource.h
4700 check_header sys/select.h
4701 check_header sys/time.h
4702 check_header sys/un.h
4703 check_header termios.h
4704 check_header unistd.h
4705 check_header vdpau/vdpau.h
4706 check_header vdpau/vdpau_x11.h
4707 check_header VideoDecodeAcceleration/VDADecoder.h
4708 check_header windows.h
4709 check_header X11/extensions/XvMClib.h
4710 check_header asm/types.h
4711
4712 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
4713 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
4714 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
4715
4716 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4717
4718 if ! disabled w32threads && ! enabled pthreads; then
4719     check_func_headers "windows.h process.h" _beginthreadex &&
4720         enable w32threads || disable w32threads
4721 fi
4722
4723 # check for some common methods of building with pthread support
4724 # do this before the optional library checks as some of them require pthreads
4725 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
4726     enable pthreads
4727     if check_func pthread_join -pthread && check_func pthread_create -pthread; then
4728         add_cflags -pthread
4729         add_extralibs -pthread
4730     elif check_func pthread_join -pthreads && check_func pthread_create -pthreads; then
4731         add_cflags -pthreads
4732         add_extralibs -pthreads
4733     elif check_func pthread_join -ldl -pthread && check_func pthread_create -ldl -pthread; then
4734         add_cflags -ldl -pthread
4735         add_extralibs -ldl -pthread
4736     elif check_func pthread_join -lpthreadGC2 && check_func pthread_create -lpthreadGC2; then
4737         add_extralibs -lpthreadGC2
4738     elif check_lib pthread.h pthread_join -lpthread && check_lib pthread.h pthread_create -lpthread; then
4739         :
4740     elif ! check_func pthread_join && ! check_func pthread_create; then
4741         disable pthreads
4742     fi
4743     check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
4744 fi
4745
4746
4747 if enabled pthreads; then
4748   check_func pthread_cancel
4749 fi
4750
4751 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
4752 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
4753
4754 check_lib math.h sin -lm && LIBM="-lm"
4755 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
4756
4757 atan2f_args=2
4758 ldexpf_args=2
4759 powf_args=2
4760 fminf_args=2
4761
4762 for func in $MATH_FUNCS; do
4763     eval check_mathfunc $func \${${func}_args:-1}
4764 done
4765
4766 # these are off by default, so fail if requested and not available
4767 enabled avfoundation_indev && { check_header_oc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
4768 enabled avisynth          && { { check_lib2 "windows.h" LoadLibrary; } ||
4769                                { check_lib2 "dlfcn.h" dlopen -ldl; } ||
4770                                die "ERROR: LoadLibrary/dlopen not found for avisynth"; }
4771 enabled decklink          && { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; }
4772 enabled frei0r            && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
4773 enabled gnutls            && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
4774 enabled ladspa            && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
4775 enabled libiec61883       && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
4776 enabled libaacplus        && require "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
4777 enabled libass            && require_pkg_config libass ass/ass.h ass_library_init
4778 enabled libbluray         && require_pkg_config libbluray libbluray/bluray.h bd_open
4779 enabled libbs2b           && require_pkg_config libbs2b bs2b.h bs2b_open
4780 enabled libcelt           && require libcelt celt/celt.h celt_decode -lcelt0 &&
4781                              { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
4782                                die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
4783 enabled libcaca           && require_pkg_config caca caca.h caca_create_canvas
4784 enabled libfaac           && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4785 enabled libfdk_aac        && require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
4786 flite_libs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
4787 enabled libflite          && require2 libflite "flite/flite.h" flite_init $flite_libs
4788 enabled fontconfig        && enable libfontconfig
4789 enabled libfontconfig     && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
4790 enabled libfreetype       && require_libfreetype
4791 enabled libfribidi        && require_pkg_config fribidi fribidi.h fribidi_version_info
4792 enabled libgme            && require  libgme gme/gme.h gme_new_emu -lgme -lstdc++
4793 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4794                                    check_lib "${gsm_hdr}" gsm_create -lgsm && break;
4795                                done || die "ERROR: libgsm not found"; }
4796 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4797 enabled libmodplug        && require libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
4798 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4799 enabled libnut            && require libnut libnut.h nut_demuxer_init -lnut
4800 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4801 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4802 enabled libopencv         && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
4803 enabled libopenjpeg       && { check_lib openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4804                                check_lib openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4805                                die "ERROR: libopenjpeg not found"; }
4806 enabled libopus           && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
4807 enabled libpulse          && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
4808 enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4809 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4810 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4811 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4812 enabled libsmbclient&